3,972 results match your criteria Hemangiopericytoma

Spinal Solitary Fibrous Tumors: An Original Multicenter Series and Systematic Review of Presentation, Management, and Prognosis.

Cancers (Basel) 2022 Jun 8;14(12). Epub 2022 Jun 8.

Neurosurgery Department, Bicêtre Hospital, 94270 Kremlin-Bicêtre, France.

All solitary fibrous tumors (SFT), now histologically diagnosed by a positive nuclear STAT6 immunostaining, represent less than 2% of soft tissue sarcomas, with spinal SFT constituting a maximum of 2% of them, making these tumors extremely rare. We provide an up-to-date overview of their diagnosis, treatment, and prognosis. We included 10 primary STAT6-positive SFT from our retrospective cohort and 31 from a systematic review. Read More

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Recurrent Solitary Fibrous Tumor (Intracranial Hemangiopericytoma) Treated With a Novel Combined-Modality Radiosurgery Technique: A Case Report and Review of the Literature.

Front Oncol 2022 26;12:907324. Epub 2022 May 26.

Chesapeake Regional, Riverside & University of Virginia Radiosurgery Center, Riverside Regional Medical Center, Newport News, VA, United States.

Solitary Fibrous Tumor (SFT) is a rare and aggressive mesenchymal malignancy of the dura with a predilection for recurrence after treatment. We report a case of a SFT initially treated with subtotal surgical resection followed by a combination of Gamma Knife (GK) and linear accelerator-based radiosurgery. Forty-four days post-resection, the tumor had demonstrated radiographic evidence of recurrent disease within the post-operative bed. Read More

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Cerebral Hemangiopericytoma Manifesting as Epilepsia Partialis Continua: A Case Report.

JNMA J Nepal Med Assoc 2022 Jun 1;60(250):551-554. Epub 2022 Jun 1.

Department of Neurosurgery, Nepal Medical College and Teaching Hospital, Attarkhel, Kathmandu, Nepal.

Cerebral hemangiopericytomas are very rare mesenchymal tumours arising from pericytes surrounding the blood vessels in the brain. Most patients present with headaches, focal neurological findings and focal seizures with or without generalisation. Our patient chiefly complained of an uncontrollable movement of her right hand that was initially fleeting but later became continuous. Read More

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Myopericytoma presenting as a painful dark subungual discoloration.

Dermatol Online J 2022 Mar 15;28(2). Epub 2022 Mar 15.

Dermatology Department, Hospital de Santa Maria, Centro Hospitalar Universitario Lisboa Norte, E.P.E., Lisbon, Portugal.

Myopericytoma is an uncommon benign neoplasm that arises from the perivascular myoid cells. It typically presents as a painless well-circumscribed cutaneous or soft-tissue nodule, most commonly on the extremities of adults. Histologically, it is characterized by spindle-shaped myoid-appearing cells with a concentric arrangement in vessel walls, that are immunoreactive to alpha-smooth muscle actin and often for h-caldesmon, but negative for other smooth muscle markers. Read More

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Are bone erosion and peripheral feeding vessels hallmarks of intracranial solitary fibrous tumor/hemangiopericytoma?

Radiol Case Rep 2022 Aug 1;17(8):2702-2707. Epub 2022 Jun 1.

Department of Neurological Surgery, Juntendo University Urayasu Hospital, Urayasu, Chiba, Japan.

An 86-year-old man sustained progressive motor weakness in the left lower extremity for 1 month. Cranial computed tomography (CT) revealed an isodense mass in the right parietal lobe, with a smooth-contoured focal erosion in the adjacent parietal bone. The extra-axial tumor appeared isointense on T1- and hyperintense on T2-weighted magnetic resonance imaging with intense enhancement. Read More

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Differentiation between Angiomatous Meningioma and Solitary Fibrous Tumors.

J Belg Soc Radiol 2022 9;106(1):45. Epub 2022 May 9.

Uz Brussel, BE.

The presence of intralesional calcifications, a dural tail sign, adjacent hyperostosis, and early draining veins can help distinguish angiomatous meningiomas (AM) from solitary fibrous tumors (SFT). Read More

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Surgical Management of Falcotentorial Junction Tumors: A Case Series Report.

Front Oncol 2022 10;12:866225. Epub 2022 May 10.

Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.

Objective: The surgical strategy for falcotentorial junction tumors remains complex. Different approaches are selected according to the location and growth pattern of the tumor and the operator's experience. This report reviews our single-institution experience in the surgical management of falcotentorial junction tumors. Read More

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The histopathological and ultrasonographic features of myopericytoma.

Med Ultrason 2022 May;24(2):249-250

1. Department of Dermatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan 2. Center of tissue engineering, Chang Gung Memorial Hospital, Taoyuan, Taiwan.

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Gallium-68-Pentixafor PET/CT demonstrating in vivo CXCR4 receptors' overexpression in rare lung malignancies: Correlation with the histological and histochemical findings.

J Nucl Med Technol 2022 May 24. Epub 2022 May 24.

Department of Pulmonary Medicine, PGIMER, India.

Gallium-68 [Ga] Pentixafor PET/CT imaging allows non-invasive assessment of CXCR4 expression in various malignancies, but its use in rare lung cancer variants is not reported. [Ga] Pentixafor PET/CT imaging was performed in 6 patients (3M:3F; mean age=57.0±16. Read More

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Clinical outcomes in central nervous system solitary-fibrous tumor/hemangiopericytoma: a STROBE-compliant single-center analysis.

World J Surg Oncol 2022 May 10;20(1):149. Epub 2022 May 10.

Department of Neurosurgery, Pituitary Adenoma Multidisciplinary Center, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, China.

Background: Solitary fibrous tumor (SFT) and hemangiopericytoma (HPC) are rare mesenchymal tumors in the central nervous system with a high tendency to relapse, having a significant impact on quality of life (QoL). Due to the rarity of intracranial SFT/HPC, the prognostic factors and optimal treatment remain to be elucidated. Meanwhile, quality of life in patients with intracranial SFT/HPC is seldomly concerned. Read More

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Primary Spinal Tumors and Masses in Children.

Iran J Child Neurol 2022 14;16(2):129-135. Epub 2022 Mar 14.

Pediatric Neurology Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Objectives: Spinal cord tumors are rare in children, mostly presented with unspecific symptoms that might pose a problem due to their possible malignancy and further complications. However, there are limited data on spinal cord lesions in Iran. This study aimed to present a series of 37 cases of primary spinal tumors treated at the same institution and briefly review their pathology, symptoms, and site of occurrence. Read More

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Solitary fibrous tumour of the sacrum: A report of 2 cases with review of the literature.

Malays J Pathol 2022 Apr;44(1):101-109

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

Introduction: Solitary fibrous tumour (SFT) of the sacrum is a very rare disease. So far, there have been few reports on this disease. Here, we reported 2 such cases and reviewed the other 7 reports in the literature. Read More

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[Surgical approach of transnasal endoscopic resection of benign lesions in the paramedian lateral skull base].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022 May;36(5):352-356

Department of Otolaryngology Head and Neck Surgery,Tianjin Huanhu Hospital,Tianjin,300350,China.

To investigate the surgical approach of transnasal endoscopic resection of benign lesions in the paramedian lateral skull base. Retrospectively analyze 40 cases of the clinical data of patients with benign lesions of the skull base from August 2018 to February 2021 with transnasal endoscopic surgery, including 9 cases of cholesteatoma, 6 cases of hemangioma, 1 case of hemangiopericytoma, 6 cases of schwannoma, 15 cases of sphenoid sinus lateral crypt meningocele and cerebrospinal fluid leak, 3 cases of nasopharyngeal carcinoma bone inflammation after radiotherapy. All patients underwent transnasal endoscopic surgery, and different surgical approaches were selected according to the lesion location. Read More

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A Pulmonary Zebra: Adult Primary Pulmonary Synovial Sarcoma.

Case Rep Oncol Med 2022 16;2022:8649540. Epub 2022 Apr 16.

Department of Medicine, UF College of Medicine - Jacksonville, 653-1 West 8th Street, L20 4th Floor, LRC Jacksonville, FL 32209, USA.

Primary pulmonary synovial sarcoma (PPSS) is an extremely rare tumor, with approximately 50 cases being reported in the English literature (Golota et al., 2018). Difficulties are often encountered in the diagnosis of PPSS as it can be confused with other spindle or round cell tumors, such as fibrosarcoma, hemangiopericytoma, mesothelioma, sarcomatoid carcinoma, or metastatic sarcomas. Read More

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An intraocular solitary fibrous tumor/hemangiopericytoma with extrascleral extension: Case report and review of literature.

Am J Ophthalmol Case Rep 2022 Jun 10;26:101513. Epub 2022 Apr 10.

Sue Anschutz-Rodgers Eye Center, Department of Ophthalmology, University of Colorado School of Medicine, 1675 Aurora Court FS 731, Aurora, CO, 80045, USA.

Purpose: To report a case of intraocular solitary fibrous tumor/hemangiopericytoma (SFT/HPC) complicated by extrascleral extension and to review the current literature regarding intraocular SFT/HPC.

Observations: A twenty-two year old male presented with decreased vision in his left eye and was found to have a subretinal mass with extrascleral extension. He underwent enucleation of his left eye and histopathology confirmed a diagnosis of SFT/HPC. Read More

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Lateral Ventricle Solitary Fibrous Tumor: A Case Report and Review of the Literature.

Cureus 2022 Mar 12;14(3):e23106. Epub 2022 Mar 12.

Neurosurgery, Baylor Scott & White Health, Temple, USA.

Solitary fibrous tumors (SFTs) are rare tumors thought to be of mesenchymal origin. Even though intracranial, especially intraventricular, SFTs are rare, this diagnosis should be considered in the differential for intraventricular lesions. Here, report the case of a female in her 60s who underwent a non-contrast-enhanced magnetic resonance imaging scan of the brain for new-onset memory issues and headache which revealed a well-circumscribed intraventricular lesion in the right lateral ventricle with vasogenic edema, trapping of the temporal horn, and subfalcine herniation. Read More

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Malignant renal hemangiopericytoma: a case report.

Pan Afr Med J 2022 13;41:36. Epub 2022 Jan 13.

Department of Surgery, Faculty of Medicine, Hasanuddin, University, Makassar, Indonesia.

Malignant hemangiopericytoma (HPC) is an uncommon disease first described by Stout and Murray in 1942. Patients with suspected renal HPC on admission sometimes complain of low back pain, hematuria, or hypertension. A combination of histochemical and anatomo-pathologic examinations is necessary to confirm the diagnosis of renal HPC. Read More

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Deep Learning Model for Intracranial Hemangiopericytoma and Meningioma Classification.

Front Oncol 2022 3;12:839567. Epub 2022 Mar 3.

Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.

Background: Intracranial hemangiopericytoma/solitary fibrous tumor (SFT/HPC) is a rare type of neoplasm containing malignancies of infiltration, peritumoral edema, bleeding, or bone destruction. However, SFT/HPC has similar radiological characteristics as meningioma, which had different clinical managements and outcomes. This study aims to discriminate SFT/HPC and meningioma deep learning approaches based on routine preoperative MRI. Read More

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Differentiation of intracranial solitary fibrous tumor/hemangiopericytoma from atypical meningioma using apparent diffusion coefficient histogram analysis.

Neurosurg Rev 2022 Jun 18;45(3):2449-2456. Epub 2022 Mar 18.

Department of Radiology, Lanzhou University Second Hospital, Chengguan District, Cuiyingmen No.82, Lanzhou, 730030, People's Republic of China.

This study aimed to investigate the value of apparent diffusion coefficient (ADC) histogram analysis in differentiating intracranial solitary fibrous tumor/hemangiopericytoma (SFT/HPC) from atypical meningioma (ATM). Retrospective analyzed the clinical, magnetic resonance imaging, and pathological data of 20 and 25 patients with SFT/HPC and ATM, respectively. Histogram analysis was performed on the axial ADC images using MaZda software, and nine histogram parameters were obtained, including mean, variance, skewness, kurtosis, and the 1 (ADC1), 10 (ADC10), 50 (ADC50), 90 (ADC90), and 99 (ADC99) percentile ADC. Read More

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Clinical Profile and Outcomes of Primary Immunodeficiency and Malignancy in Childhood at a Tertiary Oncology Center in Developing Country.

Pediatr Hematol Oncol 2022 Mar 12:1-13. Epub 2022 Mar 12.

Division of Pediatric Hematology and Oncology, Health Science University, Ankara City Hospital, Ankara, Turkey.

Primary immune deficiencies are a group of heterogenous genetic disorders characterized by frequent infections, autoimmunity and malignancy. In this study, we aimed to evaluate clinical characteristics, outcomes of children with malignancy developed on background of primary immunodeficiency and compare survival rates of patients between malignant lymphoma with primary immunodeficiency and without immunodeficiency from tertiary oncology center in a developing country. A total 23 patients with primary immunodeficiency and malignancy were evaluated retrospectively. Read More

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Parotid Gland Solitary Fibrous Tumor Presenting as a Long Duration Mass: A Case Report.

Case Rep Pathol 2022 24;2022:2097634. Epub 2022 Feb 24.

Department of Otolaryngology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.

The solitary fibrous tumor (SFT) is a tumor of uncertain histogenesis, affecting deep soft tissues, particularly the pleura (pulmonary) and extrapulmonary sites including thighs, retroperitoneum, other serosal surfaces, and cranial and spinal meninges. SFT and hemangiopericytoma are now considered the same entity, with general agreement on referring to this group of tumors as "SFT." SFTs are generally benign tumors with small subsets of malignant ones. Read More

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February 2022

Primary intraperitoneal solitary fibrous tumor in mesentery: How does it present?

Radiol Case Rep 2022 Apr 18;17(4):1318-1324. Epub 2022 Feb 18.

Department of Radiology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam.

Intra-abdominal solitary fibrous tumor (SFT), also known as hemangiopericytoma, is rare, especially for those with a mesenteric location, and only a few cases have been reported. Distinguishing a hemangiopericytoma from other intra-abdominal benign or malignant tumors can be difficult, as they have similar presentations on both computed tomography and magnetic resonance imaging. In the present study, the records for a 31-year-old Vietnamese woman who underwent abdominal surgery for greater omental tumor resection and received histopathological results revealing SFT are retrospectively reviewed. Read More

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Magnetic Resonance Elastography in Intracranial Neoplasms: A Scoping Review.

Top Magn Reson Imaging 2022 Feb;31(1):9-22

Department of Neurosurgery, Odense University Hospital, 5000 Odense, Denmark.

Background: Magnetic resonance elastography (MRE) allows noninvasive assessment of intracranial tumor mechanics and may thus be predictive of intraoperative conditions. Variations in the use of technical terms complicate reading of current literature, and there is need of a review using consolidated nomenclature.

Objectives: We present an overview of current literature on MRE relating to human intracranial neoplasms using standardized nomenclature suggested by the MRE guidelines committee. Read More

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February 2022

CD13 is a useful tool in the differential diagnosis of meningiomas with potential biological and prognostic implications.

Virchows Arch 2022 Jun 25;480(6):1223-1230. Epub 2022 Feb 25.

Department of Pathology and Diagnostics, University of Verona, P.le Stefani n. 1; 37126, Verona, Italy.

Meningiomas are common tumors of the central nervous system. Although their histological diagnosis is usually straightforward, their differential diagnosis versus other tumors may be challenging at times. The objective of this study is to assess the diagnostic value of CD13 immunoexpression in the differential diagnosis between meningiomas and their morphological mimics. Read More

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Hemangiopericytoma: Conducts and perioperative management of an extent sinonasal tumor in a Jehovah's Witnesses patient - Case report.

Cancer Rep (Hoboken) 2022 Feb 23:e1609. Epub 2022 Feb 23.

Head and Neck Surgery and Otorhinolaryngology Service, Instituto da Tireoide e Laringe, Goiânia, Brazil.

Background: Hemangiopericytomas (HPCs) are rare tumors derived from mesenchymal cells with pericyte differentiation. About 5% of head and neck HPCs occur in the nasal cavity and paranasal sinuses. Due to its rarity, rich vascularity and variable biological behavior, its management is a challenge in itself. Read More

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February 2022

[Solitary fibrous tumor/hemangiopericytoma].

No Shinkei Geka 2022 Jan;50(1):141-149

Department of Neurosurgery, the University of Tokyo.

Solitary fibrous tumor(SFT)/hemangiopericytoma(HPC)is a rare mesenchymal tumor with propensity for recurrence and metastasis. Although SFT and HPC were initially considered to be distinct entities, the identification of NAB2-STAT6 fusion as a definitive molecular alteration in both tumors has led to their integration into one disease entity, for both meningeal and non-meningeal lesions. This fusion leads to a nuclear relocation of the STAT6 protein and is detectable with immunohistochemistry. Read More

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January 2022

Solitary juvenile xanthogranuloma of temporal bone: a case report.

Shu-Ni Wang Ji Lu

BMC Pediatr 2022 02 12;22(1):87. Epub 2022 Feb 12.

The Department of Radiology, The First College of Clinical Medical Science of China Three Gorges University and Yichang Central People's Hospital, Yichang, 443000, Hubei, China.

Background: Juvenile xanthogranuloma (JXG) is a kind of non-Langerhans cell histiocytosis, usually with skin lesions as the main manifestation. It rarely occurs in other tissues or organs and even more rarely is it found in the skull. Here, we report a case of xanthogranuloma derived from the temporal bone that was not present in any other parts of the body. Read More

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February 2022

Two cases of solitary fibrous tumor/hemangiopericytoma with different clinical features according to the World Health Organization classification: case report and review of the literature.

J Spine Surg 2021 Dec;7(4):532-539

Department of Neurosurgery, Nagoya University, Nagoya, Japan.

Solitary fibrous tumors (SFTs) and hemangiopericytomas (HPCs) have been classified as one entity by the World Health Organization in 2016 due to gene fusion between NAB2 and STAT6. In the Central Nervous System (CNS), a hypocellular, collagenized tumor with a classic SFT phenotype is considered grade I, whereas more densely cellular tumors mostly corresponding to the HPC phenotype are classified as grade II or III (anaplastic) depending in mitotic count (<5 >5 mitoses per 10 high-power fields). Herein, we report two cases of targeted SFT/HPC in which pathological differences and WHO grading affect clinical features. Read More

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December 2021

Isolated hemangiopericytoma of the conjunctiva.

Am J Ophthalmol Case Rep 2022 Mar 20;25:101308. Epub 2022 Jan 20.

Emory Eye Center, Emory University School of Medicine, 1365 Clifton Rd B, Atlanta, GA, USA.

Purpose: To report a unique presentation of hemangiopericytoma and discuss the clinical course, pathological features, and management of this tumor.

Observations: An otherwise healthy 54-year-old Caucasian female presented with a painless conjunctival mass. The lesion gradually enlarged over a three-week period and was unresponsive to corticosteroid treatment. Read More

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Sino-nasal hemangiopericytoma: a case series and systematic literature review.

Eur Arch Otorhinolaryngol 2022 Feb 1. Epub 2022 Feb 1.

Department of Otolaryngology, Head and Neck Surgery, Sheba Medical Center, Ramat Gan, Israel.

Background: Hemangiopericytoma is a rare tumor of the sino-nasal tract. Its clinical behavior is controversial. Whereas some describe an indolent course, others consider it to be an aggressive lesion with a tendency toward rapid local recurrence. Read More

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February 2022