3,672 results match your criteria Hemangiopericytoma


SPINE METASTASIS OF INTRACRANIAL HEMANGIOPERICYTOMA: CASE REPORT OF TWO TREATMENTS.

Acta Ortop Bras 2019 Mar-Apr;27(2):108-112

Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas da da (IOT-HCFMUSP), Instituto de Ortopedia e Traumatologia, Grupo de Cirurgia de Coluna, Laboratório de Investigações Médicas, São Paulo, SP, Brazil.

Objective: To report the use of two techniques (radiosurgery and vertebrectomy) on the same patient for the treatment of two metastases in different sites of the spine arising from intracranial hemangiopericytoma. Intracranial hemangiopericytomas are rare, comprising approximately 2.4% of meningeal tumors and <1% of all tumors of the central nervous system. Read More

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http://dx.doi.org/10.1590/1413-785220192702176299DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6442711PMC
April 2019
2 Reads

Frozen Cytology of Meningeal Malignant Solitary Fibrous Tumor/Hemangiopericytoma.

J Pathol Transl Med 2019 Apr 11. Epub 2019 Apr 11.

Department of Neurosurgery, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea.

A 51-year-old woman presented with severe dizziness. The brain MRI revealed a 5.5 cm multiloculated mass with a thick rim in the left temporal lobe. Read More

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http://dx.doi.org/10.4132/jptm.2019.03.20DOI Listing

Malignant hepatic vascular tumors in adults: Characteristics, diagnostic difficulties and current management.

World J Clin Oncol 2019 Mar;10(3):110-135

Department of Pathology, University of Medicine and Pharmacy "Victor Babeş", Timişoara 300041, Romania.

Malignant vascular tumors of the liver include rare primary hepatic mesenchymal tumors developed in the background of a normal liver parenchyma. Most of them are detected incidentally by the increased use of performing imaging techniques. Their diagnosis is challenging, involving clinical and imaging criteria, with final confirmation by histology and immunohistochemistry. Read More

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http://dx.doi.org/10.5306/wjco.v10.i3.110DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6441663PMC
March 2019
3 Reads

[A Case of Meningeal Solitary Fibrous Tumour/Haemangiopericytoma WHO Grade III Metastasized to the Spleen Shortly After Tumor Resection].

No Shinkei Geka 2019 Mar;47(3):329-334

Department of Pathology, Faculty of Medicine, Fukuoka University.

Revision of WHO guidelines in 2016 led to the classification of solitary fibrous tumours(SFTs)and haemangiopericytomas(HPCs)as a single tumor entity characterized by NAB2-STAT6 fusion. Standard-of-care treatment involves surgery, but local recurrence and distant metastasis sometimes occur. The average latency to metastasis after surgery is 99 months. Read More

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http://dx.doi.org/10.11477/mf.1436203938DOI Listing

Varied presentation of sinonasal phosphaturic mesenchymal tumour: report of a case series with follow-up.

Eur Arch Otorhinolaryngol 2019 Mar 16. Epub 2019 Mar 16.

Department of Pathology, Christian Medical College and Hospital, Vellore, Tamil Nadu, India.

Purpose: Phosphaturic mesenchymal tumour (PMT) of the paranasal sinuses is a rare tumour that is associated with oncogenous osteomalacia causing predominant musculoskeletal symptoms. We present a series of eight patients diagnosed to have PMT of the paranasal sinuses with varied presentation and highlight the appropriate evaluation required to arrive at the diagnosis.

Methods: Retrospective review of eight patients diagnosed to have PMT-causing tumour-induced osteomalacia with follow-up data. Read More

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http://dx.doi.org/10.1007/s00405-019-05341-8DOI Listing
March 2019
1 Read

A case of solitary fibrous tumor/hemangiopericytoma in the central nervous system with papillary morphology.

Neuropathology 2019 Apr 12;39(2):141-146. Epub 2019 Mar 12.

Department of Pathology, Huashan Hospital of Fudan University, Shanghai, China.

This report describes the clinicopathological findings of a solitary fibrous tumor (SFT)/hemangiopericytoma (HPC) of the central nervous system in a 59-year-old man with space-occupying lesions on both the left anterior basicranial and on the top tail of falx cerebri. The tumor showed small quantities of solid papillary areas and a prominent papillary structure, where atypical cells were compactly arranged along the fibrovascular core. The tumor cells of both components showed nuclear relocalization of the signal transducer and activator of transcription 6 protein, with very high specificity and sensitivity for the diagnosis of SFT/HPC. Read More

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http://dx.doi.org/10.1111/neup.12541DOI Listing
April 2019
1 Read

Intradural Extramedullary Spinal Neoplasms: Radiologic-Pathologic Correlation.

Radiographics 2019 Mar-Apr;39(2):468-490

From the Department of Neuroradiology, American Institute for Radiologic Pathology, 1011 Wayne Ave, Suite 320, Silver Spring, MD 20910 (K.K.K., R.Y.S.); Department of Radiology, Mayo Clinic, Rochester, Minn (K.K.K.); Uniformed Services University of the Health Sciences, Bethesda, Md (R.Y.S.); and Department of Radiology, Walter Reed National Military Medical Center, Bethesda, Md (R.Y.S.).

While intradural extramedullary spinal disease varies widely, identification of tumors in this location and their radiologic manifestations greatly facilitates narrowing of the diagnostic considerations. Meningioma and schwannoma are the two most common intradural extramedullary tumors, and both are associated with neurofibromatosis. Meningiomas are most common in the thoracic spine and show a strong female predilection and a clinical manifestation related to compression of the spinal cord or nerve roots. Read More

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http://dx.doi.org/10.1148/rg.2019180200DOI Listing
March 2019
2 Reads

Whole-tumor histogram analysis of apparent diffusion coefficient in differentiating intracranial solitary fibrous tumor/hemangiopericytoma from angiomatous meningioma.

Eur J Radiol 2019 Mar 22;112:186-191. Epub 2019 Jan 22.

Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. Electronic address:

Purpose: To assess the role of histogram analysis of apparent diffusion coefficient (ADC) maps based on whole-tumor in differentiating intracranial solitary fibrous tumor/hemangiopericytoma (SFT/HPC) from angiomatous meningioma (AM).

Materials And Methods: Pathologically confirmed intracranial SFT/HPC (n = 15) and AM (n = 20) were retrospectively collected and their clinical and conventional MRI features were analyzed. Diffusion-weighted (DW) images (b = 0 and 1000 s/mm) were processed with the mono-exponential model. Read More

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http://dx.doi.org/10.1016/j.ejrad.2019.01.023DOI Listing
March 2019
9 Reads

18F-Choline PET/CT Imaging for Intracranial Hemangiopericytoma Recurrence.

Clin Nucl Med 2019 Apr;44(4):e305-e307

From the Departments of Nuclear Medicine and.

We report the case of a 50-year-old man, with previous history of grade 3 intracranial hemangiopericytoma with initial complete surgical resection, addressed for local recurrence. Surgical revision performed 18 months after initial surgery allowed only partial resection, leaving residual disease along the optic nerve. Complementary radiotherapy with proton was decided. Read More

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http://dx.doi.org/10.1097/RLU.0000000000002498DOI Listing
April 2019
2 Reads

[Retroperitoneal hemangiopericytoma-a rare case with multiple relapses-even 20 years after primary diagnosis].

Urologe A 2019 Apr;58(4):424-427

Klinik für Urologie und Kinderurologie, Universitätsklinikum Marburg, Philipps Universität Marburg, Baldingerstraße, 35039, Marburg, Deutschland.

A 41-year-old man without previous illness presented at our clinic with progressive pain in the lower abdomen and intermittent pain in the left flank. We found a lesion of unknown dignity which had anatomical contact to the bladder and rectum. Histological examination confirmed the diagnosis of hemangiopericytoma. Read More

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http://dx.doi.org/10.1007/s00120-019-0879-4DOI Listing
April 2019
1 Read

Coexistence of intracranial solitary fibrous tumor/hemangiopericytoma and right middle cerebral artery aneurysm.

J Surg Case Rep 2019 Jan 31;2019(1):rjz013. Epub 2019 Jan 31.

Department of Radiology, Section of Neuroradiology Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC.

Intracranial solitary fibrous tumors are rare mesenchymal neoplasms originating in the meninges and constitute a heterogeneous group of rare spindle cell tumors that include benign and malignant neoplasms of which hemangiopericytoma is nowadays considered a cellular phenotypic variant. From literatures, the incidence of coexistence of brain tumors and intracranial aneurysms is ~0.7-5. Read More

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http://dx.doi.org/10.1093/jscr/rjz013DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6354750PMC
January 2019
4 Reads

Hemangiopericytoma of Gingiva in a 4-Year-Old Child: A Rare Case Report.

J Maxillofac Oral Surg 2019 Mar 1;18(1):52-56. Epub 2018 Mar 1.

2Department of Oral & Maxillofacial Surgery, Sudha Rustagi College of Dental Sciences & Research, Faridabad, Haryana India.

A hemangiopericytoma is a type of soft tissue sarcoma that originates in the pericytes in the walls of capillaries which was characterized in 1942. It is commonly seen in the age group of 5th-6th decades of adults and only 5-10% of cases occur in children with extreme rare occurrence in head and neck region (16%). A rare case of hemangiopericytoma in a 4-year-old female patient is presented here and its clinical, histopathological and immunohistochemically features are discussed. Read More

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http://dx.doi.org/10.1007/s12663-018-1086-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6328836PMC

Intracranial Solitary Fibrous Tumors: A Heterogeneous Entity with an Uncertain Clinical Behavior.

World Neurosurg 2019 Feb 1. Epub 2019 Feb 1.

Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France.

Background: Intracranial solitary fibrous tumors (ISFTs) are rare mesenchymal neoplasms originating in the meninges and characterized by very different biologic and clinical behaviors. Benign histotypes, such as hemangiopericytomas, are now considered a cellular phenotypic variant of this heterogeneous group of rare spindle-cell tumors. Owing to their rarity and resemblance to other, more common brain tumors, ISFTs are often poorly recognized and remain a diagnostic challenge. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.01.142DOI Listing
February 2019

Apparent diffusion coefficient values in differential diagnosis and prognostic prediction of solitary of fibrous tumor/hemangiopericytoma (WHOII) and atypical meningioma.

Technol Health Care 2019 ;27(2):137-147

Department of Radiology, Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200080, China.

Background: It is difficult to distinguish solitary of fibrous tumor/hemangiopericytoma (SFT/HPC) from atypical meningioma (AM) by conventional imaging.As far as we know,diffusion weighting imaging may identify them effectively.

Objective: The purpose of this study was to determine the role of apparent diffusion coefficient (ADC) values to distinguish and predict prognosis of solitary of fibrous tumor/hemangiopericytoma (SFT/HPC) (WHOII) and atypical meningioma (AM). Read More

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http://dx.doi.org/10.3233/THC-181447DOI Listing
January 2019
2 Reads

Solitary Fibrous Tumor of Pleura Invading into the Left Atrium via Pulmonary Vein.

Cureus 2018 Oct 22;10(10):e3473. Epub 2018 Oct 22.

Pulmonology, Maimonides Medical Center, Brooklyn, USA.

A 67-year-old woman came to the hospital because of difficulty in breathing. After an initial clinical assessment, contrast-enhanced computerized tomography (CT) of the chest revealed a well-circumscribed heterogeneous mass arising from the pleura adjacent to the superior and medial left pulmonary artery. The mass was invading the pulmonary vein and entering the left atrium. Read More

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http://dx.doi.org/10.7759/cureus.3473DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318085PMC
October 2018
1 Read

Rare Occurrence of an Intraocular Choroidal Solitary Fibrous Tumor/Hemangiopericytoma.

Ocul Oncol Pathol 2018 Jun 16;4(4):213-219. Epub 2017 Dec 16.

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.

Purpose: Tumors previously diagnosed as solitary fibrous tumors (SFT) and hemangiopericytomas (HPC) are characterized by the fusion gene, leading to nuclear STAT6 expression, and are now considered part of one SFT/HPC tumor entity by the 2016 World Health Organization Classification of Tumors of the Central Nervous System. We present the first primary choroidal SFT/HPC with the diagnosis confirmed by STAT6 expression.

Procedures: A 51-year-old man underwent enucleation for a choroidal mass, which revealed a spindle cell neoplasm involving the optic nerve, without extrascleral extension. Read More

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http://dx.doi.org/10.1159/000481947DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6322087PMC
June 2018
1 Read

[Solitary fibrous tumor/hemangiopericytoma of central nervous system: a clinicopathological analysis of 60 cases].

Zhonghua Bing Li Xue Za Zhi 2019 Jan;48(1):31-36

Department of Pathology, Nanjing Jinling Hospital, Nanjing 210002, China Guan Yu is working on the Department of Pathology, Xuzhou Mining Hospital, Jiangsu Province, Xuzhou 221006, China.

To investigate the clinical manifestations, imaging features, clinicopathologic features, and differential diagnosis of solitary fibrous tumors/anginoblastomas (SFT/HPCs) originating in the central nervous system. Sixty cases of SFT/HPCs originating in the central nervous system were collected at Nanjing Jinling Hospital, from January 1, 2008 to December 31, 2016. The clinical data, imaging data, histomorphologic changes and immunohistochemical finding were analyzed in the sixty cases. Read More

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http://dx.doi.org/10.3760/cma.j.issn.0529-5807.2019.01.007DOI Listing
January 2019
2 Reads

Recurrent Sinonasal CD34-Negative Malignant Solitary Fibrous Tumor Diagnosed on STAT6 Immunohistochemistry and NAB2-STAT6 Fusion.

Head Neck Pathol 2019 Jan 8. Epub 2019 Jan 8.

Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.

A spectrum of mesenchymal neoplasms occur in the sinonasal region. One of these is solitary fibrous tumor (SFT), a translocation-associated neoplasm characterized by NAB2-STAT6 gene fusion. Sinonasal SFTs characteristically display CD34 immunopositivity, which aids in diagnosis. Read More

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http://dx.doi.org/10.1007/s12105-018-00999-8DOI Listing
January 2019

Malignant solitary fibrous tumor in the subcutis: Report of a rare superficial malignant type and review of published work.

J Dermatol 2019 Mar 4;46(3):267-270. Epub 2019 Jan 4.

Department of Plastic Surgery, Kansai Medical University Medical Center, Osaka, Japan.

An 82-year-old Japanese man presented with a 90 mm × 80 mm subcutaneous nodule on the left chest, not connected to the pleura, described as hypointense on T -weighted magnetic resonance imaging. Histologically, a well-demarcated nodule demonstrated a patternless pattern composed of hemangiopericytoma-like and short storiform patterns from the subcutis into deeper tissue. Antler-like branching blood vessels and keloidal-type collagen bundles were seen. Read More

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http://dx.doi.org/10.1111/1346-8138.14755DOI Listing

A rapidly fatal intracranial anaplastic hemangiopericytoma with de-novo dedifferentiation: emphasis on diagnostic recognition, molecular confirmation and discussion on treatment dilemma.

Brain Tumor Pathol 2019 Jan 2;36(1):20-26. Epub 2019 Jan 2.

Department of Pathology, National University Health System, 5 Lower Kent Ridge Road, 119074, Singapore, Singapore.

Solitary fibrous tumors/ hemangiopericytomas (SFT/HPC) are mesenchymal tumors that share a common genetic aberration and very rarely undergo dedifferentiation. We report a unique case of an intracranial anaplastic SFT/HPC with de-novo dedifferentiation, which pursued a rapidly fatal clinical course in a 41-year-old lady. The dedifferentiated component comprised a focal area of glandular formation with epithelial immunophenotype acquisition. Read More

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http://dx.doi.org/10.1007/s10014-018-0333-0DOI Listing
January 2019
1 Read

Solitary fibrous tumor.

Transl Gastroenterol Hepatol 2018 21;3:94. Epub 2018 Nov 21.

Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA.

Solitary fibrous tumor (SFT) is a rare tumor of mesenchymal origin that account for less than 2% of all soft tissue masses. Initially identified in the pleura, SFT has been identified in multiple anatomic locations and can arise anywhere in the body. The varying histologic features along with non-specific means of identification have led SFT to be associated with several different names. Read More

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http://dx.doi.org/10.21037/tgh.2018.11.02DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6286917PMC
November 2018

Unedited microneurosurgery of a solitary fibrous tumor of the pineal region.

Surg Neurol Int 2018 28;9:232. Epub 2018 Nov 28.

International Center for Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China.

Background: Solitary fibrous tumor/hemangiopericytoma is a new combined entity introduced in the 2016 World Health Organization classification of tumors of the central nervous system for grade I-III soft-tissue tumors. While grades II and III present more aggressive course and might require adjuvant radiochemotherapy, grade I tumors have a good outcome after gross total resection. In this video-abstract, we present an unedited microneurosurgery of a histologically confirmed benign solitary fibrous tumor of the pineal region performed by a senior author (JH). Read More

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http://dx.doi.org/10.4103/sni.sni_264_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6287330PMC
November 2018

Sinonasal hemangiopericytoma caused hypophosphatemic osteomalacia: A case report.

Medicine (Baltimore) 2018 Dec;97(52):e13849

Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu.

Rationale: Tumor-induced osteomalacia (TIO) is a rare, paraneoplastic syndrome featured with fibroblast growth factor 23 (FGF23) secretion primarily by benign mesenchymal tumors and sometimes by malignancies. TIO diagnosis and treatment is often delayed because TIO usually has nonspecific generalized bone pain and weakness, and location of TIO tumor is quite challenging. Very few TIO caused by sinonasal hemangiopericytoma have been reported in the literature. Read More

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http://dx.doi.org/10.1097/MD.0000000000013849DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6314754PMC
December 2018
2 Reads
5.723 Impact Factor

Diagnosis and treatment of hemangiopericytoma in the central nervous system.

J Cancer Res Ther 2018 ;14(7):1578-1582

Department of Radiation Oncology, Chinese PLA General Hospital, Beijing, China.

Objective: This study aimed to explore the clinical characteristics and treatment of the hemangiopericytoma (HPC) in the central nervous system.

Materials And Methods: Clinical data from 14 patients with HPC in the central nervous system who were followed up for 12-107 months were retrospectively analyzed, and relevant literature was reviewed.

Results: All 14 patients underwent surgery and postoperative pathologic diagnosis, including 8 cases of total excision, 3 cases of subtotal excision, and 3 cases of partial excision. Read More

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http://dx.doi.org/10.4103/jcrt.JCRT_210_18DOI Listing
February 2019
18 Reads

The impact of histopathology and NAB2-STAT6 fusion subtype in classification and grading of meningeal solitary fibrous tumor/hemangiopericytoma.

Acta Neuropathol 2019 Feb 24;137(2):307-319. Epub 2018 Dec 24.

Anatomic Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street, SW, Rochester, MN, 55905, USA.

Meningeal solitary fibrous tumor (SFT)/hemangiopericytoma (HPC) is a rare tumor with propensity for recurrence and metastasis. Although multiple classification schemes have been proposed, optimal risk stratification remains unclear, and the prognostic impact of fusion status is uncertain. We compared the 2016 WHO CNS tumor grading scheme (CNS-G), a three-tier system based on histopathologic phenotype and mitotic count, to the 2013 WHO soft-tissue counterpart (ST-G), a two-tier system based on mitotic count alone, in a cohort of 133 patients [59 female, 74 male; mean age 54 years (range 20-87)] with meningeal SFT/HPC. Read More

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http://link.springer.com/10.1007/s00401-018-1952-6
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http://dx.doi.org/10.1007/s00401-018-1952-6DOI Listing
February 2019
15 Reads

Solitary Fibrous Tumor/Hemangiopericytoma of Spinal Cord: A Retrospective Single-Center Study of 16 Cases.

World Neurosurg 2019 Mar 13;123:e629-e638. Epub 2018 Dec 13.

Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Objective: In this study, we retrospectively reviewed our experience in the surgical management of solitary fibrous tumor (SFT)/hemangiopericytomas (HPCs) of the spinal cord.

Methods: Sixteen patients with SFT/HPCs of the spinal cord were enrolled in this study. Data on clinical presentation, radiologic findings, histopathologic features, surgical treatment, adjuvant therapy, and prognosis were retrospectively reviewed. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.12.004DOI Listing
March 2019
28 Reads

A Case of Primary Intra-abdominal Synovial Sarcoma.

Indian J Surg Oncol 2018 Dec 22;9(4):636-639. Epub 2018 May 22.

2Department of General and Gastrointestinal Surgery, Medical Trust Hospital, M.G. Road, Kochi, Kerala 682016 India.

Synovial sarcomas are relatively common intermediate-to-high-grade malignant soft tissue tumors, often with an initial indolent course. And among the sarcomas primary intra-abdominal synovial sarcoma is a relatively rare entity that may present with an abdominal mass and diagnosis is usually confirmed by immunohistochemistry. The authors report a case of a 46-year-old man who presented with a large palpable abdominal mass. Read More

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http://dx.doi.org/10.1007/s13193-018-0783-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6265165PMC
December 2018
3 Reads

Activity of axitinib in progressive advanced solitary fibrous tumour: Results from an exploratory, investigator-driven phase 2 clinical study.

Eur J Cancer 2019 Jan 5;106:225-233. Epub 2018 Dec 5.

Medical Oncology Unit 2, Medical Oncology Department, Fondazione IRCCS Istituto Nazione dei Tumori, Milan, Italy; Medical Oncology and Hemato-Oncology Department, University of Milan, Milano, Italy.

Background: To explore the activity of axitinib in advanced solitary fibrous tumour (SFT).

Patients And Methods: In this investigator-driven phase II study on axitinib in advanced and progressive SFT, patients received axitinib, 5 mg bis in day (BID), until progression or limiting toxicity. Pathologic diagnosis was centrally reviewed, distinguishing malignant SFT (M-SFT) and high-grade/dedifferentiated SFT (HG/D-SFT) subtypes. Read More

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http://dx.doi.org/10.1016/j.ejca.2018.10.024DOI Listing
January 2019
4 Reads

Ultrasonic Scalpel-Assisted Endoscopic Endonasal Surgery of Infratemporal Fossa: Our First Impressions.

World Neurosurg 2019 Mar 3;123:23-28. Epub 2018 Dec 3.

Division of Otorhinolaryngology, Department of Biotechnology and Life Sciences, Head and Neck Surgery & Forensic Dissection Research Center, University of Insubria, Varese, Italy.

Background: The endoscopic endonasal transpterygoid approach is emerging as a valid option for treating selected tumors in the infratemporal fossa. Compared with traditional open approaches, the endoscopic endonasal approach presents more difficulty in controlling bleeding and less choice in surgical instruments for endoscopic tumor dissection, which is often performed with bipolar forceps or steel dissectors.

Case Description: We describe the use of an ultrasonic scalpel device for performing endoscopic endonasal resection of 2 rare infratemporal fossa tumors (mature teratoma and hemangiopericytoma), which has not been reported in the literature so far. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183276
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http://dx.doi.org/10.1016/j.wneu.2018.11.202DOI Listing
March 2019
15 Reads

Intraspinal Dissemination and Local Recurrence of an Intracranial Hemangiopericytoma.

World Neurosurg 2019 Mar 29;123:68-75. Epub 2018 Nov 29.

Department Neurosurgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA.

Background: Hemangiopericytomas (HPCs) are rare vascular tumors that resemble meningiomas on imaging and have a high rate of local recurrence and metastases. There remains a paucity of data to guide management decisions of intraspinal dissemination of HPCs in the literature, and none specifically related to anaplastic HPCs.

Case Description: We report a case of a 34-year-old woman with locally and distantly recurrent anaplastic HPC (World Health Organization grade III). Read More

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http://dx.doi.org/10.1016/j.wneu.2018.11.173DOI Listing
March 2019
2 Reads

Solitary fibrous tumor of central nervous system masquerading as meninigioma: Report of a rare case.

Int J Surg Case Rep 2019 27;54:10-14. Epub 2018 Nov 27.

Deptt. of Pathology, PGIMS Rohtak, Haryana, India. Electronic address:

Introduction: Solitary fibrous tumor (SFT) is a rare neoplasm of mesenchymal origin that occurs most often in the visceral pleura. It rarely occurs in the central nervous system (CNS). If they occur intracranially, they are extra-axially located and develop from the meninges. Read More

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http://dx.doi.org/10.1016/j.ijscr.2018.11.063DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6279985PMC
November 2018
7 Reads

[Remarkable recovery in a patient with intradural extramedullary haemangiopericytoma: a case report and literature review].

Folia Neuropathol 2018 ;56(2):151-157

Haemangiopericytomas (HPCs) in the spinal canal are extremely rare and have only been infrequently reported. Severe and sustained spinal cord compression resulting from these intraspinal tumours may cause potentially irreversible neurological impairment. We described a rare case of primary intradural extramedullary HPC recovered from serious compression of thoracic spinal cord in a 65-year-old man suffered from a rapidly progressive disease with complete paralysis of the lower limbs. Read More

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http://dx.doi.org/10.5114/fn.2018.76620DOI Listing
March 2019
2 Reads

Diffusion weighted imaging may help differentiate intracranial hemangiopericytoma from meningioma.

J Neuroradiol 2018 Nov 27. Epub 2018 Nov 27.

Department of Pathology, University of Manitoba, Winnipeg, Canada.

Background And Purpose: Hemangiopericytoma and meningioma appear similar on routine diagnostic imaging and hence are difficult to distinguish. The purpose of our study was to examine the diffusion weighted imaging (DWI) characteristics of these two types of tumours.

Methods: In a retrospective study, each patient with hemangiopericytoma was matched with two meningioma patients based on tumour location and size. Read More

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http://dx.doi.org/10.1016/j.neurad.2018.11.002DOI Listing
November 2018
14 Reads

Solitary fibrous tumor/hemangiopericytoma of the optic canal.

Clin Neuropathol 2019 Mar/Apr;38(2):74-79

Solitary fibrous tumor/hemangiopericytoma seldom arises from the optic nerve sheath. Herein, we describe the clinical, radiological, and histological findings of a solitary fibrous tumor/hemangiopericytoma arising from the optic nerve sheath and occupying the optic canal. The diagnosis is challenging both clinically and histologically as it clinically simulates a commoner lesion, i. Read More

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http://dx.doi.org/10.5414/NP301127DOI Listing
February 2019
3 Reads

Giant bilateral renal metastases from a meningeal hemangiopericytoma.

J Cancer Res Ther 2018 Oct-Dec;14(6):1434-1436

Urology Unit, Civil Hospital of Guastalla, Guastalla, RE, Italy.

We report the third case of bilateral metastatic renal meningeal hemangiopericytoma (HPC) 16 years after initial intracranial presentation. A 47-year-old male patient presented with abdominal mass drew our attention. Computed tomography (CT) demonstrated bilateral renal masses and another mass caudal to the lower pole of left kidney from which it was separated. Read More

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http://dx.doi.org/10.4103/0973-1482.187340DOI Listing
February 2019
2 Reads

Clinical metric for differentiating intracranial hemangiopericytomas from meningiomas using diffusion weighted MRI.

Clin Imaging 2019 Mar - Apr;54:1-5. Epub 2018 Nov 1.

Department of Radiology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, 100 East 77th Street, New York, NY 10075, USA.

Purpose: Intracranial Hemangiopericytomas (IHP) are dural based tumors that frequently recur/metastasize. Unfortunately, their imaging appearance overlaps significantly with more benign meningiomas. We evaluated the use of diffusion weighted imaging (DWI) to differentiate IHP from meningioma. Read More

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http://dx.doi.org/10.1016/j.clinimag.2018.10.018DOI Listing
November 2018
3 Reads
0.596 Impact Factor

A Case Report of Meningeal Hemangiopericytoma: A 9-Year Journey from the Brain to the Spine.

World Neurosurg 2019 Feb 14;122:459-463. Epub 2018 Nov 14.

Division of Neurosurgery, Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut, Lebanon. Electronic address:

Background: Hemangiopericytomas (HPCs) are rare and aggressive vascular mesenchymal tumors. Unlike meningiomas, which have a similar radiologic appearance, these tumors have a higher risk of local recurrence after resection, and distant metastasis can reach up to 23%. Metastases to the vertebral bones from an intracranial HPC are very rare, with so far only 9 cases reported in the literature. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S18788750183257
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http://dx.doi.org/10.1016/j.wneu.2018.11.028DOI Listing
February 2019
24 Reads

Solitary fibrous tumor: An evolving and unifying entity with unsettled issues.

Histol Histopathol 2019 Apr 15;34(4):313-334. Epub 2018 Nov 15.

Department of Anatomic Pathology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.

Solitary fibrous tumor (SFT) is a distinct fibroblastic neoplasm of intermediate biological potential, prototypically presenting as a pleura-associated tumor characterized by patternless proliferation of generally banal oval to spindle cells with hemangiopericytoma-like staghorn vessels in fibrocollagenous stroma. Over the past decades, the clinicopathological spectrum of SFT has been ever-expanding with the incorporation of cases exhibiting myxoid, giant cell-containing, and fat-forming histology, as well as those from extrathoracic sites, including the meninx. Atypical, frankly malignant and even dedifferentiated variants have also been recognized in a subset of SFTs. Read More

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http://www.hh.um.es/Abstracts/Vol_/_/__18064.htm
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http://dx.doi.org/10.14670/HH-18-064DOI Listing
April 2019
15 Reads

Very rare localization of a retroperitoneal hemangiopericytoma revealed by lumbosciatalgia: A case report.

Int J Surg Case Rep 2018 30;53:127-131. Epub 2018 Oct 30.

Department of Surgery, Sahloul Hospital, Sousse, Tunisia. Electronic address:

Introduction: Hemangiopericytoma is a rare vascular tumor representing about 1% of all vascular tumors and approximatively 5% of all soft tissues sarcomas that arises from the pericytes of Zimmerman surrounding capillaries and postcapillaries vessels. Retroperitoneal hemangiopericytomas are rare among the localisations as it usually occurs in lower and upper extremities.

Presentation Of Case: We present a case of 31-year-old man with a well-defined retro peritoneal mass measuring about 105 × 73 × 83 mm at right lower quadrant of the abdomen anterior to right psoas muscle. Read More

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http://dx.doi.org/10.1016/j.ijscr.2018.10.056DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6216087PMC
October 2018
4 Reads

Pathological Features and Clinical Course in Patients With Recurrent or Malignant Orbital Solitary Fibrous Tumor/Hemangiopericytoma.

Ophthalmic Plast Reconstr Surg 2019 Mar/Apr;35(2):148-154

Orbital Oncology and Ophthalmic Plastic Surgery, Department of Plastic Surgery.

Purpose: A risk assessment score for metastasis based on age, tumor size, and mitotic figures has been suggested for nonorbital solitary fibrous tumor (SFT)/hemangiopericytoma. The authors herein examine the clinicopathological features of recurrent and metastatic orbital SFT and evaluate the existing risk assessment score for orbital SFT.

Methods: The American Society of Ophthalmic Plastic and Reconstructive Surgery Oncology Database was queried for patients with recurrent or malignant orbital hemangiopericytoma/SFT. Read More

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http://Insights.ovid.com/crossref?an=00002341-900000000-9840
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http://dx.doi.org/10.1097/IOP.0000000000001189DOI Listing
October 2018
15 Reads

Solitary fibrous tumour of caecum wall: an unlikely cause of low gastrointestinal haemorrhage.

BMJ Case Rep 2018 Oct 25;2018. Epub 2018 Oct 25.

Anatomical Pathology, LAP-Laboratório Anatomia Patológica-Unilabs, Porto, Portugal.

Solitary fibrous tumour (SFT), previously denominated as haemangiopericytoma, is a rare, spindle cell neoplasm that was first described in the thoracic pleura. It is now known that this tumour may develop from almost any anatomic location. We report a case of SFT, in a 65-year-old man, which was located in the muscularis propria layer of the caecum with involvement of the serosa and the ileocecal appendix, location never described in the literature, and with an uncommon clinical presentation of hematochezia. Read More

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http://casereports.bmj.com/lookup/doi/10.1136/bcr-2018-22723
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http://dx.doi.org/10.1136/bcr-2018-227238DOI Listing
October 2018
12 Reads

Vascular tumours of the liver: a particular story.

Transl Gastroenterol Hepatol 2018 14;3:62. Epub 2018 Sep 14.

Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain (UCL), Brussels, Belgium.

Vascular tumours of the liver represent an underrated chapter of medical and surgical hepatology. These tumours cover a wide spectrum ranging from the frequent and most benign hepatic haemangioma (HH), via the rare and intermediately aggressive hepatic epithelioid haemangioendothelioma (HEHE) to the rare and most malignant hepatic haemangiosarcoma (HHS). In contrast to the treatment algorithms for hepatocellular and cholangiocellular cancer, the diagnostic and therapeutic approaches to HEHE and HHS are not well developed. Read More

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http://tgh.amegroups.com/article/view/4556/5328
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http://dx.doi.org/10.21037/tgh.2018.09.02DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6182012PMC
September 2018
17 Reads

Oral and Extraoral Intermediate Tumors: Are MMP-9 and Ki-67 Biomarkers Correlated to Their High Recurrence Rates?

Appl Immunohistochem Mol Morphol 2018 Oct 24. Epub 2018 Oct 24.

Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MA.

Intermediate tumors of the head and neck fall in the borderline category. They are clinically aggressive tumors with no malignant phenotyping. They are locally infiltrative and have high recurrence rate with less chances to metastasize. Read More

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http://dx.doi.org/10.1097/PAI.0000000000000703DOI Listing
October 2018
7 Reads

Primary epidural hemangiopericytoma of the thoracic spine: Case report and literature review.

J Clin Neurosci 2019 Feb 21;60:142-147. Epub 2018 Oct 21.

Department of Orthopedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.

Hemangiopericytoma (HPC) is a rare tumor originating from pericapillary cells. Rarely found in the central nervous system, it is extremely rare in the spinal canal. Because of the low incidence of this tumor, its radiographic features and clinical manifestations have not been extensively studied and reported, therefore, it is often misdiagnosed as a schwannoma or spinal meningioma. Read More

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http://dx.doi.org/10.1016/j.jocn.2018.10.057DOI Listing
February 2019
10 Reads

Myopericytoma-An Alternate Cause of Persistent Knee Pain in Rheumatoid Arthritis.

J Assoc Physicians India 2018 03;66(3):88-90

Department of Orthopaedics, Christian Medical College, Vellore, Tamil Nadu.

Rheumatoid Arthritis can present with consistent pain over peripheral joints. The manner of presentation of a subcutaneous tumour such as Myopericytoma may be very similar to that of an inflamed joint leading to the high frequency of it being overlooked and inadequately treated. Knowing the radiological and pathological differences will direct us in the right road to timely and adequate treatment. Read More

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March 2018
12 Reads

Osteoblastoma of the frontal bone invading the orbital roof: A case report.

Medicine (Baltimore) 2018 Oct;97(42):e12803

Department of General Surgery, Sir Run Run Shaw Hospital, Medical College, Zhejiang University, Hangzhou, China.

Rationale: Osteoblastoma is an uncommon primary bone tumor that involves any part of the skeleton. But its occurrence in the skull is extremely rare.

Patients Concerns: A 30-year-old female was admitted to our hospital, because of the mass in the right frontal region with the history of headache for 3 years without nausea or vomiting. Read More

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http://dx.doi.org/10.1097/MD.0000000000012803DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6211925PMC
October 2018
5 Reads
5.723 Impact Factor

Metastatic craniocervical hemangiopericytoma presenting with hydrocephalus and papilledema - Case review.

J Clin Neurosci 2018 Oct 30;56:186-187. Epub 2018 Jun 30.

Department of Neurosurgery, Level 1, Old Baker Building, The Alfred Hospital, 55 Commercial Rd, Melbourne, Victoria 3004, Australia. Electronic address:

Hemangiopericytomas are rare mesenchymal tumors with propensity to recur locally and metastasize. We report the unique case of a fifty-five-year-old male with recurrence of a previously resected craniocervical hemangiopericytoma presenting with obstructive hydrocephalus secondary to new metastatic cerebellar deposits. Emergent surgical resection of the cerebellar hemangiopericytomas was performed prior to adjuvant radiotherapy. Read More

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http://dx.doi.org/10.1016/j.jocn.2018.06.031DOI Listing
October 2018
2 Reads

Preoperative Prediction of Solitary Fibrous Tumor/Hemangiopericytoma and Angiomatous Meningioma Using Magnetic Resonance Imaging Texture Analysis.

World Neurosurg 2018 Dec 18;120:e1208-e1216. Epub 2018 Sep 18.

Department of Neurosurgery, Keio University School of Medicine, Tokyo, Japan.

Background: Solitary fibrous tumor (SFT)/hemangiopericytoma (HPC) is radiologically difficult to distinguish from meningioma, especially angiomatous meningioma. This study aimed to detect texture parameters to distinguish SFT/HPC from angiomatous meningioma using magnetic resonance imaging texture analysis with commercially available software.

Methods: We retrospectively investigated textural parameters in 43 newly diagnosed SFTs/HPCs, angiomatous meningiomas, and other World Health Organization (WHO) grade I meningiomas treated at Keio University Hospital. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.09.044DOI Listing
December 2018
1 Read

Meningeal solitary fibrous tumor/hemangiopericytoma: Emphasizing on STAT 6 immunohistochemistry with a review of literature.

Neurol India 2018 Sep-Oct;66(5):1419-1426

Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi, Pakistan.

Background: The 2016 central nervous system (CNS) World Health Organisation (WHO) Update has merged the entities of meningeal solitary fibrous tumor (SFT) and hemangiopericytoma (HPC) into a single entity based on the presence of the nerve growth factor 1A (NGFI-A) binding protein 2 (NAB2)- signal transducer and activator of transcription 6 (STAT6) gene fusion in these tumors. Immunohistochemical (IHC) staining with STAT6 results in a strong nuclear positivity confirming the diagnosis. Meningeal SFT/HPCs are currently histologically graded according to a three-tiered system. Read More

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http://www.neurologyindia.com/text.asp?2018/66/5/1419/241365
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http://dx.doi.org/10.4103/0028-3886.241365DOI Listing
September 2018
9 Reads
1.084 Impact Factor

Canine spindle cell tumor mimicking human classical hemangiopericytoma.

J Vet Med Sci 2018 Nov 19;80(11):1728-1732. Epub 2018 Sep 19.

Laboratory of Veterinary Pathology, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan.

The neoplastic mass developed in the left flank of a Border Collie dog. The tumor was resected surgically and evaluated histologically and immunohistochemically. Histologically a moderate number of spindle cells were proliferated with staghorn, placentoid, and myxoid growth patterns and a lack of perivascular whirling. Read More

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http://dx.doi.org/10.1292/jvms.18-0382DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6261813PMC
November 2018