3,780 results match your criteria Hemangiopericytoma


Pelvic hemangiopericytoma: A case report and review of the literature.

Urol Case Rep 2020 Sep 12;32:101247. Epub 2020 May 12.

Institute of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.

Extrauterine pelvic hemangiopericytomas are rare tumors with malignant potential. Herein, we report a case of a 55-year-old male who presented with hydronephrosis and obstructive urinary symptoms. Cystoscopy, imaging and biopsy were unable to provide a definitive preoperative diagnosis. Read More

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http://dx.doi.org/10.1016/j.eucr.2020.101247DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7232097PMC
September 2020

Primary hemangiopericytoma of the infratemporal fossa.

J Biol Regul Homeost Agents 2020 Mar-Apr;34(2):691-695

Department of Neurosciences, Section of Otolaryngology and Regional Centre for Head and Neck Cancer, University of Padova, Treviso, Italy.

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http://dx.doi.org/10.23812/19-431-LDOI Listing

An institutional review of 10 cases of spinal hemangiopericytoma/solitary fibrous tumor.

Neurol India 2020 Mar-Apr;68(2):448-453

Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India.

Background: Spinal hemangiopericytoma is very rare tumors with only a few case reports and one case series. We have treated ten patients between 2004 and 2017 and, thus, present a retrospective review of our patients with a focus on clinical presentation, radiological features, management, pathology, and outcome.

Materials And Methods: Histopathological data were reviewed in all the cases and clinical and follow-up details were collected from data available in our department. Read More

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http://dx.doi.org/10.4103/0028-3886.284374DOI Listing

MultiHance as a contrast alternative for Gadovist allergic patients.

Radiol Case Rep 2020 Jul 30;15(7):850-853. Epub 2020 Apr 30.

Division of Radiation Oncology, The Ottawa Hospital, University of Ottawa, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada.

The dramatic rise in the use of contrast agents for diagnostic imaging within the last decade has largely contributed to the effectiveness of MR imaging, however even with the use of prophylaxis, adverse reactions to contrast, including anaphylaxis, still occur. We describe the case of a 46-year-old female patient with a hemangiopericytoma requiring ongoing contrast MR surveillance, and a documented anaphylactic reaction to Gadovist (gadobutrol injection) despite premedication. Allergy testing was positive to intradermal undiluted Gadovist, confirming an IgE-mediated Gadovist allergy, with subsequent skin testing by prick and intradermal negative to undiluted MultiHance. Read More

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http://dx.doi.org/10.1016/j.radcr.2020.04.023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7200611PMC

Intracranial hemangiopericytoma after radiation treatment: first case in the literature.

Br J Neurosurg 2020 May 7:1-2. Epub 2020 May 7.

Department of Neurosurgery, Bahçeşehir University School of Medicine, İstanbul, Turkey.

Radiation exposure is a known risk factor for meningioma but there are no data regarding hemangiopericytoma and radiation exposure. We report a 29-year-old pineoblastoma patient diagnosed with a hemangiopericytoma at a different location, after a successful surgical excision and adjuvant radiotherapy for the original tumor 4-year prior. Hemangiopericytoma emergence can be seen after radiotherapy. Read More

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http://dx.doi.org/10.1080/02688697.2020.1759779DOI Listing

Combined Surgical Approach to Intracranial and Extracranial Hemangiopericytoma: Case Report and Literature Review.

Cureus 2020 Mar 28;12(3):e7447. Epub 2020 Mar 28.

Medicine, University of Guanajuato, Leon, MEX.

Hemangiopericytoma (HPC) is a rare vascular tumor that was first described in 1942 and whose classification and treatment continue to develop. The proper classification for HPC is still under discussion, being considered a solitary fibrous tumor (SFT), classified as an aggressive biological form. The World Health Organization (WHO) has considered it to be part of extrapleural solitary fibrous tumors, however, neuropathologists still consider it to be an HPC when it is found in the central nervous system. Read More

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http://dx.doi.org/10.7759/cureus.7447DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7186106PMC

Invasive Solitary Fibrous Tumor/Hemangiopericytoma of the filum terminale.

World Neurosurg 2020 Apr 26. Epub 2020 Apr 26.

Departments of Neurosurgery. Electronic address:

A 37-year-old man presented with a 7-year history of low back pain. Magnetic resonance imaging revealed an intradural mass involving L5 vertebra impairment at the level of L4-L5. A L4-S1 laminectomy was performed. Read More

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http://dx.doi.org/10.1016/j.wneu.2020.04.121DOI Listing

Extrameningeal solitary fibrous tumors-surgery alone or surgery plus perioperative radiotherapy: A retrospective study from the global solitary fibrous tumor initiative in collaboration with the sarcoma patients EuroNet.

Cancer 2020 Apr 21. Epub 2020 Apr 21.

Adult Mesenchymal and Rare Tumor Unit, Medical Oncology, IRCCS Foundation, National Cancer Institute, Milan, Italy.

Background: Solitary fibrous tumor (SFT) is a rare mesenchymal malignancy. Although surgery is potentially curative, the local relapse risk is high after marginal resections. Given the lack of prospective clinical trial data, the objective of the current study was to better define the role of perioperative radiotherapy (RT) in various SFT presentations by location. Read More

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http://dx.doi.org/10.1002/cncr.32911DOI Listing

Intradural-extramedullary solitary fibrous tumor of the thoracic spine: A case report.

Radiol Case Rep 2020 Jun 7;15(6):709-711. Epub 2020 Apr 7.

Presybyterian Medical Center, 365 Seo-Won-Ro, Jeonju, South Korea.

Spinal solitary fibrous tumors are extremely rare neoplasms and of those, intradural extramedullary location is even rarer. A 64-year-old male presented to the emergency department with worsening right leg pain over 1 month. Whole spine magnetic resonance imaging revealed a well-circumscribed mass with low T1 and markedly low T2 signal intensity at the level of T1-2. Read More

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http://dx.doi.org/10.1016/j.radcr.2020.02.038DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7139141PMC

Coexistence of Conventional Leiomyoma, Fumarate Hydratase-deficient Atypical Leiomyoma, and Perivascular Epithelioid Cell Tumor in a Uterus: A Case Study.

Int J Gynecol Pathol 2020 Apr 6. Epub 2020 Apr 6.

Departments of Pathology (Y.L., R.V., C.-F.H., T.-C.W., B.M.R., D.X.) Gynecology and Obstetrics (R.V., C.-F.H., T.-C.W., B.M.R, D.X.) Oncology (C.-F.H., T.-C.W., D.X.), The Johns Hopkins Medical Institutions, Baltimore, Maryland Department of Gynecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Henan, China (Y.L.) Department of Pathology, Clara Maass Medical Center, Belleville E.M.B.D. Woodland Park OBGYN, LLC, Woodland Park (S.O.), New Jersey.

A 44-yr-old woman with menorrhagia and uterine fibroids underwent total laparoscopic hysterectomy, revealing several submucosal, intramural, and subserosal tan-white nodules in the uterus. Microscopic examination revealed tumors displaying 3 distinct morphologies: 1 tumor with features of conventional leiomyoma; 1 tumor with increased cellularity, staghorn/hemangiopericytoma-like vasculature, and occasional atypical cells with prominent red nucleoli and some perinucleolar halos suggesting a fumarate hydratase (FH)-deficient atypical leiomyoma; and 1 tumor with an admixture of epithelioid and spindled cells with the former arranged around blood vessels suggesting a perivascular epithelioid cell tumor (PEComa). Immunohistochemical studies confirmed these diagnoses by demonstrating loss of FH expression in the atypical leiomyoma and diffuse expression of HMB45 and cathepsin K in the tumor with epithelioid features. Read More

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http://dx.doi.org/10.1097/PGP.0000000000000676DOI Listing

Radio-pathological review of a metastatic renal cell carcinoma within a meningioma: A case report of collision tumor.

Radiol Case Rep 2020 May 28;15(5):637-640. Epub 2020 Mar 28.

Department of Radiology, University of Missouri Health Care, Columbia, MO, USA.

We report a case of a collision tumor, a meningioma complicated with metastasis from a primary renal cell carcinoma. A 75-year-old man, with known history of renal cell carcinoma, and 10-year history of stable meningioma developed neurological symptoms. Computed tomography and magnetic resonance imaging revealed left frontal intracranial extra-axial mass with imaging criteria suspicious for an atypical meningioma or hemangiopericytoma. Read More

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http://dx.doi.org/10.1016/j.radcr.2020.02.031DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7113407PMC

Solitary fibrous tumor/hemangiopericytoma in the cerebellopontine angle mimicking vestibular schwannoma: A case report and literature review.

Medicine (Baltimore) 2020 Mar;99(13):e19651

Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Sichuan Province, China.

Rationale: Intracranial solitary fibrous tumors (SFTs) and hemangiopericytomas (HPCs) are rare spindle cell tumors of mesenchymal origin that include benign and malignant neoplasms.

Patient Concerns: We present a 66-year-old male with a 5-year history of headache and dizziness, with left progressive sensorineural hearing loss over 1 month.

Diagnoses: WHO grade II SFT/HPC originating from the internal auditory canal in the left cerebellopontine angle. Read More

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http://dx.doi.org/10.1097/MD.0000000000019651DOI Listing

Solitary fibrous tumors of the head and neck region revisited: a single-institution study of 20 cases and review of the literature.

Hum Pathol 2020 Mar 23;99:1-12. Epub 2020 Mar 23.

Department of Pathology, Charles University, The Faculty of Medicine and Faculty Hospital in Pilsen, Alej Svobody 80, Pilsen, 304 60, Czech Republic; Bioptická laboratoř s.r.o., Mikulášske nám. 4, Pilsen, 326 00, Czech Republic. Electronic address:

A solitary fibrous tumor (SFT) is a rare, NAB2-STAT6 fusion gene-associated mesenchymal neoplasm. It most commonly arises in the pleural site, but it can occur at many other sites, and rarely also in the head and neck (H&N) region. STFs may show many growth patterns and therefore can be easily mistaken for other more common H&N spindle cell or epithelial lesions. Read More

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http://dx.doi.org/10.1016/j.humpath.2020.03.007DOI Listing

Renal hemangiopericytoma in 15 year old female-treated laparoscopically.

Urol Case Rep 2020 Jul 11;31:101132. Epub 2020 Mar 11.

Department of Pathology, MUHAT "St. Marina", Varna, Bulgaria.

Hemangiopericytoma (HPC) is rare in the urogenital system, most frequently occurs in the pelvis, head and neck, and meninges, it is extremely rare in the kidney. US, CT, or MRI do not show any specific sign of renal HPC that might aid in the differential diagnosis with other renal tumors, that's why almost all cases are diagnosed after pathological results. The majority of cases are identified in patients with an unspecific clinical manifestations associated with hematuria or hypertension, hypoglycemia or additional paraneoplastic syndromes. Read More

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http://dx.doi.org/10.1016/j.eucr.2020.101132DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7076144PMC

[Bilateral pulmonary metastatic meningeal solitary fibrous tumor/perihemangioma: report of a case].

Zhonghua Bing Li Xue Za Zhi 2020 Mar;49(3):271-273

Department of Pathology, South District of the First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230036, China.

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http://dx.doi.org/10.3760/cma.j.issn.0529-5807.2020.03.013DOI Listing

[The role of SMARCE1 in the diagnosis of clear cell meningioma].

Zhonghua Bing Li Xue Za Zhi 2020 Mar;49(3):234-238

Department of Pathology, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China.

To analyze the expression of SMARCE1 in clear cell meningioma (CCM), and evaluate the role of SMARCE1 in the differential diagnosis in morphologically similar diseases. Thirteen samples/11 cases of CCMs were collected from the First Affiliated Hospital of Fujian Medical University, Shandong Provincial Hospital, Xuanwu Hospital of Capital Medical University and Thaihe Hospital of Hubei Province from January 2000 to December 2018, as well as 17 cases of meningiomas with clear-cell-like morphology, 782 cases of other types of meningiomas and other intracranial tumors with clear-like morphology. A tissue microarray was made using these cases, on which immunohistochemical/histochemical staining of SMARCE1, SSTR2, EMA, Ki-67, p53, PAS and D-PAS were performed. Read More

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http://dx.doi.org/10.3760/cma.j.issn.0529-5807.2020.03.005DOI Listing

Association of T and N Categories of the American Joint Commission on Cancer, 8th Edition, With Metastasis and Survival in Patients With Orbital Sarcoma.

JAMA Ophthalmol 2020 Feb 27. Epub 2020 Feb 27.

Orbital Oncology and Ophthalmic Plastic Surgery, Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston.

Importance: No previous studies to date have validated the American Joint Committee on Cancer (AJCC) 8th edition of the TNM classification for orbital sarcoma.

Objectives: To determine the prognostic performance of the most recent TNM classification for orbital sarcoma and to identify other prognostic factors for local recurrence, lymph node metastasis, distant metastasis, and death due to disease.

Design, Setting, And Participants: This single-center retrospective cohort study included 73 consecutive patients treated for orbital sarcoma from March 1, 2003, through June 30, 2018. Read More

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http://dx.doi.org/10.1001/jamaophthalmol.2020.0039DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7047857PMC
February 2020

Spectrum of histological features of Denosumab treated Giant Cell Tumor of Bone; potential pitfalls and diagnostic challenges for pathologists.

Ann Diagn Pathol 2020 Apr 14;45:151479. Epub 2020 Feb 14.

Section of Histopathology, Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi, Pakistan. Electronic address:

Objectives: Denosumab is Receptor Activator of Nuclear factor Kappa-B Ligand (RANKL) inhibitor which is being used in the treatment of locally advanced, recurrent and metastatic Giant Cell Tumor of Bone (GCTB). It causes reduction in monocyte recruitment and Osteoclast-Like Giant Cell (OLGC) formation which limits bone destruction. After Denosumab treatment, GCTB exhibit diverse morphological features which can pose diagnostic challenge. Read More

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http://dx.doi.org/10.1016/j.anndiagpath.2020.151479DOI Listing
April 2020
1.112 Impact Factor

Quantitative assessment and clinical relevance of VEGFRs-positive tumor cells in refractory brain tumors.

Exp Mol Pathol 2020 Jun 21;114:104408. Epub 2020 Feb 21.

Department of Neurosurgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan. Electronic address:

Vascular endothelial growth factor (VEGF)/VEGF receptor (VEGFR)1 and 2 signaling is a potent activator of tumor angiogenesis. Although the expressions of VEGFR1 and VEGFR2 were initially thought to be limited to the endothelial cells, it is now known that both the receptors are expressed in tumor cells. This is the first study wherein VEGFRs-positive tumor cells are quantitatively evaluated for brain tumors with upregulated VEGF/VEGFR signaling. Read More

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http://dx.doi.org/10.1016/j.yexmp.2020.104408DOI Listing

Managing a long-recurring primary orbital hemangiopericytoma.

Proc (Bayl Univ Med Cent) 2020 Jan 8;33(1):108-109. Epub 2019 Oct 8.

Department of Ophthalmology, Baylor University Medical CenterDallasTexas.

Hemangiopericytomas are uncommon vascular neoplasms that originate from the pericytes lining capillaries and postcapillary venules. Few cases of primary orbital hemangiopericytoma have been reported. We present a 61-year-old woman with longstanding, recurrent benign orbital hemangiopericytoma and results of its successful removal. Read More

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http://dx.doi.org/10.1080/08998280.2019.1664221DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6988679PMC
January 2020

Imaging of skull vault tumors in adults.

Insights Imaging 2020 Feb 13;11(1):23. Epub 2020 Feb 13.

Department of Neuroradiology, Hospital Universitari de Bellvitge, C. Feixa Llarga SN, 08907, L'Hospitalet de Llobregat, Spain.

The skull vault, formed by the flat bones of the skull, has a limited spectrum of disease that lies between the fields of neuro- and musculoskeletal radiology. Its unique abnormalities, as well as other ubiquitous ones, present particular features in this location. Moreover, some benign entities in this region may mimic malignancy if analyzed using classical bone-tumor criteria, and proper patient management requires being familiar with these presentations. Read More

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http://dx.doi.org/10.1186/s13244-019-0820-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7018895PMC
February 2020

Presentation of Infantile Hemangiopericytoma/Solitary Fibrous Tumor as a Giant Extracranial Temporal Mass.

Fetal Pediatr Pathol 2020 Jan 29:1-5. Epub 2020 Jan 29.

Plastic Reconstructive and Aesthetic Surgery, Hacettepe University, Ankara, Turkey.

Infantile Hemangiopericytoma (HPC)/Solitary Fibrous Tumor (SFT), a vascular tumor of head and neck region, can be congenital or arise during the first year of the life. As the infantile form of hemangiopericytoma has a better course than the adult form, surgical excision is recommended. A full-term neonate presented with a congenital right temporal soft tissue mass. Read More

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http://dx.doi.org/10.1080/15513815.2020.1716904DOI Listing
January 2020

Gene of the month: GLI-1.

Authors:
Runjan Chetty

J Clin Pathol 2020 Apr 24;73(4):228-230. Epub 2020 Jan 24.

Department of Pathology, University Health Network Laboratory Medicine Program, University of Toronto, Toronto, Ontario, Canada

The () gene was first discovered to be amplified in glioblastoma multiforme. It encodes for a zinc-finger transcription factor in the Kruppel family of proteins and is important in the sonic hedgehog signalling pathway. also plays a role in several other pathways and is important for proliferation, migration, invasion, growth and angioinvasion, and cancer stem cell self-renewal in a variety of malignancies. Read More

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http://dx.doi.org/10.1136/jclinpath-2020-206431DOI Listing

Metastatic intracranial solitary fibrous tumors/hemangiopericytomas: description of two cases with radically different behaviors and review of the literature.

Anticancer Drugs 2020 Jul;31(6):646-651

Weill-Cornell University, New York, USA.

Solitary fibrous tumor/hemangiopericytoma with primary tumor location in the central nervous system accounts for less than 1% of all central nervous system tumors. Despite the relatively indolent clinical course, extracranial metastases are reported in 28% of cases. In recent years, NAB2-STAT6 gene fusion has been recognized as the pathognomonic molecular feature of solitary fibrous tumor/hemangiopericytoma and STAT6 immunohistochemistry has been shown to be a sensitive and specific surrogate for the identification of the gene fusion in these patients. Read More

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http://dx.doi.org/10.1097/CAD.0000000000000900DOI Listing

How to differentiate spinal cord hemangiopericytoma from common spinal cord tumor?

Neurochirurgie 2020 Feb 14;66(1):53-55. Epub 2020 Jan 14.

Hospices Civils de Lyon, Hôpital P. Wertheimer, Service de Neurochirurgie D, 59, Boulevard Pinel, 69003, Lyon, France; Université de Lyon, Université Claude-Bernard, 69003 Lyon, France; Laboratoire CREATIS, CNRS UMR5220, Inserm U1206, INSA-Lyon; Université de Lyon I, 69006 Lyon, France.

Introduction: Tumors of the spinal cord are rare and some can be confused with each other. We report a rare spinal cord solitary fibrous tumor/hemangiopericytoma (SFT/HPC), and propose keys to differentiate spinal cord tumors from each other.

Case Report: A 67-year-old man presented weakness with recent diffuse sensory disorders in the right lower limb. Read More

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http://dx.doi.org/10.1016/j.neuchi.2019.10.012DOI Listing
February 2020

EBV-associated myoid tumor with lipoblast-like cells in a patient with normal immunity.

Int J Clin Exp Pathol 2019 1;12(7):2733-2742. Epub 2019 Jul 1.

Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University Guangzhou 510120, P. R. China.

EBV-associated myoid tumor (EBVMT) comprises a specific group of soft tissue tumors with divergent histologic appearances, which typically occur in immunocompromised patients. To the best of our knowledge, there have been no previous reported of EBVMT in patients with normal immunity. EBVMT with lipoblast-like cells (EBVMT-LIC) is an extremely rare variant of EBVMT. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6949543PMC

Lipomatous hemangiopericytoma of the corpus spongiosum: a case report and review of the literature.

Int J Clin Exp Pathol 2019 1;12(1):212-216. Epub 2019 Jan 1.

Department of Urology, Henan Provincial People's Hospital Zhengzhou, China.

Background: Hemangiopericytoma (HPC) is an uncommon soft tissue tumor arising from pericytes. The urogenital system is rarely affected.

Methods: The review of the literature used the PubMed database which was searched up to March 2015. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6944011PMC
January 2019

[Special histopathological variants and potential diagnostic traps of classical follicular dendritic cell sarcoma].

Zhonghua Bing Li Xue Za Zhi 2020 Jan;49(1):34-39

Department of Pathology, the First Hospital Affiliated to Army Medical University (Third Military Medical University), Chongqing 400038, China.

To investigate the clinicopathological features, special morphologic variants and potential diagnostic traps of classical follicular dendritic cell sarcoma (FDCS). A total of 25 cases of classical FDCS diagnosed in the First Hospital Affiliated to Army Medical University from 2006 to 2018 were examined by hematoxylin-eosin staining, immunohistochemistry and in situ hybridization for Epstein-Barr virus-encoded mRNA (EBER). Meanwhile, the types and characteristics of the special variants of FDCS were summarized along with those reported in the literature. Read More

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http://dx.doi.org/10.3760/cma.j.issn.0529-5807.2020.01.007DOI Listing
January 2020

[Gastrointestinal glomus tumors: a clinicopathological analysis of fifteen cases].

Zhonghua Bing Li Xue Za Zhi 2020 Jan;49(1):22-27

Department of Pathology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China.

To investigate the clinicopathological features, diagnosis and differential diagnosis of gastrointestinal glomus tumors (GIGT). Totally 15 cases of GIGT were collected at the First Affiliated Hospital, Zhengzhou University, from January 2011 to June 2018. The clinicopathological features, immunophenotype, BRAF V600E mutation and prognosis were retrospectively analyzed. Read More

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http://dx.doi.org/10.3760/cma.j.issn.0529-5807.2020.01.005DOI Listing
January 2020

[Value of Diffusion-weighted Imaging and Apparent Diffusion Coefficient in the Differential Diagnosis of Posterior Fossa Solid Hemangioblastoma].

Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2019 Dec;41(6):756-760

Department of Radiology,the First Affiliated Hospital of Soochow University,Suzhou,Jiangsu 215006,China.

To investigate the value of diffusion-weighted imaging(DWI)and apparent diffusion coefficient(ADC)in the diagnosis and differential diagnosis of posterior fossa solid hemangioblastoma(PFSH). We retrospectively analyzed the clinical data of 15 PFSH patients and 58 patients with other hypervascular tumors in the posterior fossa(the latter included 23 cases of meningioma,5 cases of medulloblastoma,8 cases of acoustic neuroma,4 cases of hemangiopericytoma,5 cases of lymphoma,9 cases of metastatic tumor,3 cases of astrocytoma,and 1 case of choroid plexus papilloma)confirmed by operation and pathology.All patients underwent axial DWI scans,and the mean ADC value of solid part of the tumors and the adjacent normal cerebellar white matter were measured,and then the normalized ADC was calculated. Read More

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http://dx.doi.org/10.3881/j.issn.1000-503X.11188DOI Listing
December 2019

Intradural-Extramedullary Solitary Fibrous Tumor/Hemangiopericytoma with a Negative Result on Fluorodeoxyglucose-Positron Emission Tomography/Computed Tomography.

Case Rep Orthop 2019 22;2019:3926903. Epub 2019 Nov 22.

Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma 371-8511, Japan.

Intradural-extramedullary solitary fibrous tumor/hemangiopericytoma (SFT/HPC) is a rare entity. SFT/HPCs can recur after surgery, even if a benign histology of the tumor is observed. We herein report a 68-year-old woman with intradural-extramedullary SFT/HPC. Read More

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http://dx.doi.org/10.1155/2019/3926903DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6893274PMC
November 2019

Parapharyngeal Hemangiopericytoma: the Role for Mandibular Proximal Segment Replantation-Review of Literature.

Indian J Surg Oncol 2019 Dec 9;10(4):708-712. Epub 2019 Sep 9.

3Dental Research Center, Mashhad University of Medical Sciences, Vakilabad Blvd, Mashhad, Iran.

Pharyngeal hemangiopericytoma is a rare tumor .Surgical access to space has been selected based on the location of the tumor in this space, size, and type of pathology. Hemangiopericytoma requires extracapsular dissection. Read More

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http://dx.doi.org/10.1007/s13193-019-00975-wDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6895317PMC
December 2019

Spinal Intramedullary Solitary Fibrous Tumor: A Rare and Challenging Diagnosis.

Cancer Manag Res 2019 10;11:10321-10326. Epub 2019 Dec 10.

Department of Orthopedics, Peking University Third Hospital, Beijing 100191, People's Republic of China.

Background: Solitary fibrous tumor (SFT) is a benign neoplasm arising in the soft tissue, which can occur anywhere in the body, while it is predominantly found in the visceral pleura. Spinal SFT is quite uncommon, with limited cases having been reported in the literature; especially, SFT occurring in the intramedullary site is extremely rare.

Case Presentation: We present a case of a 35-year-old woman presenting with progressive numbness and weakness in the legs and urinary incontinence. Read More

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http://dx.doi.org/10.2147/CMAR.S231019DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6911315PMC
December 2019

Radiotherapy in the treatment of extracranial hemangiopericytoma/solitary fibrous tumor: Study from the Rare Cancer Network.

Radiother Oncol 2020 Mar 2;144:114-120. Epub 2019 Dec 2.

Dept. Of Radiation Oncology, Centre A. Lacassagne, Nice, France; Dept. of Radiation Oncology, Centre F. Baclesse, Caen, France.

Background And Purpose: The role of radiotherapy (RT) in the treatment of hemangiopericytoma/solitary fibrous tumor (HPC/SFT) is still under debate. We aimed at investigating whether radiotherapy can improve the results in patients operated for extracranial HPC/SFT.

Materials And Methods: Data from patients with HPC/SFT, treated from 1982 to 2012, were retrospectively reviewed within the Rare Cancer Network framework. Read More

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http://dx.doi.org/10.1016/j.radonc.2019.11.011DOI Listing

The controversial histologic classification of canine subcutaneous whorling tumours: The path to perivascular wall tumours.

Vet Comp Oncol 2020 Mar 5;18(1):3-8. Epub 2019 Dec 5.

Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, Milan, Italy.

Subcutaneous spindle cell tumours characterized by whorling growth patterns are common in dogs and are identified as a distinct entity. These tumours were misnamed as hemangiopericytomas (HPCs) because of some minor morphological parallels with their human counterparts. In veterinary medicine, the cell of origin of HPC has been under debate for a long time. Read More

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http://dx.doi.org/10.1111/vco.12559DOI Listing

Case report: neonatal giant forehead hemangiopericytoma with a 5-year follow-up.

Medicine (Baltimore) 2019 Nov;98(47):e17888

Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan province.

Rationale: Hemangiopericytoma (HPC) is a rare pediatric neoplasm with a high risk of bleeding, aggressive growth and high early relapse rates. Surgical excision remains the mainstream treatment, while the functions of chemotherapy and radiotherapy remain controversial. In particular, an infantile giant extracranial HPC located in the forehead has never been reported. Read More

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http://dx.doi.org/10.1097/MD.0000000000017888DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6882637PMC
November 2019

A solitary fibrous tumor/hemangiopericytoma of the fourth ventricle: case report and literature review.

J Int Med Res 2019 Dec 17;47(12):6349-6355. Epub 2019 Nov 17.

The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.

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http://dx.doi.org/10.1177/0300060519885567DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7045656PMC
December 2019

Solitary papule on the leg.

Cutis 2019 Sep;104(3):173;187-188

Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, Charleston, USA.

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September 2019
0.594 Impact Factor

Differentiating intracranial solitary fibrous tumor/hemangiopericytoma from meningioma using diffusion-weighted imaging and susceptibility-weighted imaging.

Neuroradiology 2020 Feb 31;62(2):175-184. Epub 2019 Oct 31.

Department of Radiology, First Affiliated Hospital of Fujian Medical University, 20 Cha-Zhong Road, Fuzhou, Fujian, 350005, People's Republic of China.

Purpose: Intracranial solitary fibrous tumor/hemangiopericytoma (SFT/HPC) and meningioma are difficult to distinguish owing to their overlapping imaging manifestation on routine magnetic resonance imaging. The purpose of this study was to assess whether SFT/HPC can be differentiated from meningioma with diffusion-weighted imaging (DWI) and susceptibility-weighted imaging (SWI).

Methods: We retrospectively reviewed DWI, SWI, conventreional MR, and CT imaging features of 16 patients with SFT/HPC and 96 patients with meningioma. Read More

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http://dx.doi.org/10.1007/s00234-019-02307-9DOI Listing
February 2020

"Hey! Whatever happened to hemangiopericytoma and fibrosarcoma?" An update on selected conceptual advances in soft tissue pathology which have occurred over the past 50 years.

Authors:
Andrew L Folpe

Hum Pathol 2020 Jan 24;95:113-136. Epub 2019 Oct 24.

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905. Electronic address:

Hemangiopericytoma and fibrosarcoma represented at one time two of the most common diagnoses in soft tissue pathology. Both terms are now largely extinct. This article will review the clinicopathologic, immunohistochemical and molecular genetic advances that have led to these changes, and review the pathologic features of a select group of soft tissue tumors previously classified as hemangiopericytoma or fibrosarcoma. Read More

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http://dx.doi.org/10.1016/j.humpath.2019.10.001DOI Listing
January 2020

Primary Hemangiopericytoma Arising in Extralobar Pulmonary Sequestration: A Coincidence or Two Rare Disorders?

In Vivo 2019 Nov-Dec;33(6):2141-2145

Department of Thoracic Surgery, Attikon University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Chaidari, Greece.

Background/aim: Extralobar pulmonary sequestration (EPS) is an unusual congenital defect characterized by the presence of non-functioning lung tissue receiving arterial supply from the systemic arteries. Primary hemangiopericytoma (HPC) is an uncommon potentially malignant tumor of vascular origin that usually involves the soft tissue of the extremities or retroperitoneum, but extremely rarely affects the lung. We present the rare case of a primary pulmonary HPC arising in an EPS. Read More

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http://dx.doi.org/10.21873/invivo.11715DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6899116PMC

Nervous System Hemangiopericytoma.

Authors:
Or Cohen-Inbar

Can J Neurol Sci 2019 Oct 14:1-12. Epub 2019 Oct 14.

Department of Neurological Surgery, University of Pittsburgh, Cumberland, MD, USA.

The management of patients harboring central nervous system (CNS) hemangiopericytomas (HPCs) is a partially answered challenge. These are rare locally aggressive lesions, with potential for local recurrence, distal neural metastasis (DNM), and extraneural metastasis (ENM). Resection, when feasible, remains the initial treatment option, providing histological diagnosis and immediate relief of tumor-related mass effect. Read More

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http://dx.doi.org/10.1017/cjn.2019.311DOI Listing
October 2019

Non-islet cell tumor-induced hypoglycemia in the setting of metastatic intracranial hemangiopericytoma: case report and review of the literature.

Br J Neurosurg 2019 Oct 10:1-3. Epub 2019 Oct 10.

Department of Neurosurgery, National Brain Aneurysm and Tumor Center, United Hospital , St. Paul , MN , USA.

Intracranial hemangiopericytoma, particularly in the setting of extracranial metastatic disease, can cause severe hypoglycemia; but there is limited description of this phenomenon in the neurosurgical literature. We report the case of a male patient with recurrent meningeal hemangiopericytoma that had metastasized to multiple extracranial locations, who presented with severe, symptomatic hypoglycemia and abnormal levels of insulin, pro-insulin, insulin-like growth factors I and II, and C-peptide. This case highlights the association between hemangiopericytoma and abnormal levels of peptide hormones involved in glucose homeostasis, which may serve as a warning sign for hemangiopericytoma and/or metastatic disease. Read More

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http://dx.doi.org/10.1080/02688697.2019.1671953DOI Listing
October 2019
2 Reads

Intracavernous Hemangiopericytoma: Case Report and Review of the Literature.

NMC Case Rep J 2019 Oct 11;6(4):111-115. Epub 2019 Sep 11.

Department of Neurosurgery, Osaka City General Hospital, Osaka, Osaka, Japan.

Intracavernous hemangiopericytoma/solitary fibrous tumor is an extremely rare tumor, with only seven cases reported. We present a case of intracavernous hemangiopericytoma/solitary fibrous tumor and review all cases reported in the literature. A 67-year-old man experienced numbness over the left half of the face. Read More

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http://dx.doi.org/10.2176/nmccrj.cr.2018-0300DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6776749PMC
October 2019
1 Read

Pericytoma With t(7;12) and ACTB-GLI1 Fusion: Reevaluation of an Unusual Entity and its Relationship to the Spectrum of GLI1 Fusion-related Neoplasms.

Am J Surg Pathol 2019 12;43(12):1682-1692

Departments of Pathology.

The entity "pericytoma with t(7;12)" was described as a rare, distinct perivascular myoid neoplasm provisionally classified within the family of myopericytic tumors that demonstrates t(7;12)(p22;q13) translocation with resultant ACTB-GLI1 fusion and biologically was felt to behave in an indolent fashion. However, a recent study showed that tumors with this and similar translocations may have variable morphology and immunohistochemical phenotype with inconsistent myopericytic characteristics and a propensity for metastasis, raising questions regarding the most appropriate classification of these neoplasms. Herein, we report 3 additional patients with tumors harboring t(7;12) and ACTB-GLI1 fusion. Read More

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http://dx.doi.org/10.1097/PAS.0000000000001360DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6851481PMC
December 2019
7 Reads

A rare case of CNS hemangiopericytoma presenting with papilledema.

GMS Ophthalmol Cases 2019 20;9:Doc32. Epub 2019 Aug 20.

Department of Neuro Ophthalmology, Aravind Eye Hospital & Postgraduate Institute of Ophthalmology, Coimbatore, India.

Hemangiopericytoma rarely affects the central nervous system (CNS) and usually presents to neurologists with neurological symptoms. We report a rare case of large CNS hemangiopericytoma which presented to an ophthalmologist with only signs of mild defective vision and papilledema. Read More

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http://dx.doi.org/10.3205/oc000121DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6734512PMC
August 2019
3 Reads

Extraneural metastasis of meningeal haemangiopericytoma to the liver.

Turk J Gastroenterol 2019 09;30(9):848-850

Department of Pathology, Selayang Hospital, Selangor, Malaysia.

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http://dx.doi.org/10.5152/tjg.2019.18454DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6750823PMC
September 2019

Intracranial anaplastic hemangiopericytoma presenting with simultaneous extra-cranial metastases: A case report and review of the literature.

Surg Neurol Int 2019 26;10:148. Epub 2019 Jul 26.

Departments of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, United States.

Background: Intracranial solitary fibrous tumor/hemangiopericytoma (SFT/HPC) is a rare mesenchymal tumor with a propensity to recur and metastasize extracranially years after treatment. Accordingly, there are no reported cases of a patient presenting with a simultaneous intracranial primary and extracranial metastases. We present the case of a patient presenting with an intracranial SFT/HPC and simultaneous liver metastases and propose a treatment paradigm. Read More

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http://dx.doi.org/10.25259/SNI_111_2019DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6744806PMC
July 2019
3 Reads

Giant intracranial congenital hemangiopericytoma/solitary fibrous tumor: A case report and literature review.

Surg Neurol Int 2019 24;10:75. Epub 2019 Apr 24.

Department of Neurosurgery, Children's Hospital "Aghia Sophia", Athens, Greece.

Background: Hemangiopericytoma and solitary fibrous tumor (HPC/SFT) are considered to be one category according to the WHO 2016 classification of central nervous system tumors. HPC/SFT are subdivided into infantile (congenital) and adult type. Both are extremely rare entities, with little knowledge about etiology, prognosis, and optimal therapeutic strategy. Read More

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http://dx.doi.org/10.25259/SNI-85-2019DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6744783PMC
April 2019
2 Reads

A rare case of metastatic solitary fibrous tumor of the pancreas manifesting as a cystic neoplasm: a case report.

Surg Case Rep 2019 Sep 13;5(1):142. Epub 2019 Sep 13.

Department of Gastroenterological Surgery, Hyogo Cancer Center, 13-70 Kitaoji-Cho, Akashi-Shi, Hyogo, 673-8558, Japan.

Background: Solitary fibrous tumor (SFT) is a rare mesenchymal tumor that typically arises from the pleura. Although it may appear in other organs, it rarely develops in the pancreas. We report herein a rare case of metastatic SFT of the pancreas originating from an intracranial tumor and subsequently identified as a cystic neoplasm of the pancreas. Read More

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http://dx.doi.org/10.1186/s40792-019-0699-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6744537PMC
September 2019
3 Reads