Results 41 to 50 of about 6,108 (163)

Angiographic Evidence of a Purely Pial Bihemispheric Intracranial Hemangiopericytoma

Case Reports in Neurological Medicine, 2016
Background. Classification of hemangiopericytoma (HPC) has evolved to a mesenchymal, nonmeningothelial grade two or three neoplasm according to the World Health Organization; however its blood supply has always been defined by dual origin, pial and dural
Nathaniel Stetson, Sudhakar Vadivelu, Jiang Y. Li, Avi Setton, David J. Chalif   +4 more
doaj   +1 more source

Surgical Treatment for Osteomalacia Induced by Causative Tumor in the Knee Joint Region: A Single‐Center Retrospective Clinical Study Over 10 Years

Orthopaedic Surgery, Volume 17, Issue 12, Page 3440-3455, December 2025.
The causative tumor for TIO in the knee joint region is hidden and has diverse locations, resulting in great challenges to endocrinologist and orthopedists. Due to the unique anatomical location and complex structure of the knee joint, orthopedic surgeons can adopt different surgical approaches to completely remove the causative tumor.
Shuzhong Liu, Xi Zhou, Jinyi Xing, Zhen Huo, Mingjing Zhang, Bo Yang, Yong Liu, Weibo Xia   +7 more
wiley   +1 more source

The orbital and sinonasal hemangiopericytoma, 2 case reports:

Journal of Fasa University of Medical Sciences, 2016
Background & objective: Hemangiopericytoma is an uncommon vascular tumor derived from the pericytes of Zimmermann. . The most common location of the tumor is pelvic retroperitoneum and musculoskeletal system of the lower extremities. It is rarely seen in
Maryam Maghbol, Mohammadjavad ashraf, Negar Azarpira   +2 more
doaj  

Primary epidural malignant hemangiopericytoma of thoracic spinal column causing cord compression: case report

São Paulo Medical Journal
CONTEXT: Hemangiopericytoma is an uncommon mesenchymal neoplasm that rarely affects the spinal canal. Primary malignant hemangiopericytoma of the spinal column is extremely rare.
Mohammad Mohammadianpanah, Simin Torabinejad, Mohammad Hadi Bagheri, Shapour Omidvari, Ahmad Mosalaei, Niloofar Ahmadloo   +5 more
doaj   +1 more source

Solitary Fibrous Tumor of the Renal Hilar in a 52‐Year‐Old Woman: A Case Report

Clinical Case Reports, Volume 13, Issue 11, November 2025.
ABSTRACT Solitary fibrous tumors (SFTs) are rare spindle cell tumors that primarily originate from the pleura, with infrequent occurrences in the kidney. To date, only a limited number of cases has been reported. This report presents the case of a 52‐year‐old woman diagnosed with an SFTs.
Yang Zhang, Chuan‐Chuan Wu, Bang‐Wei Che, Kai‐Fa Tang   +3 more
wiley   +1 more source

Unusual occurrence of orbital hemangiopericytoma in the zygomatic bone of an adolescent: a case report

Eye and Vision, 2018
Background Hemangiopericytoma and solitary fibrous tumor are considered related variants on the same spectrum and both may essentially be the same tumor.
Bahram Eshraghi, Hadi Ghadimi, Zohreh Nozarian   +2 more
doaj   +1 more source

Meningeal Solitary Fibrous Tumor: A Cytological Report With Emphasis on the Usefulness of Immunocytochemical Analysis for STAT6

Diagnostic Cytopathology, Volume 53, Issue 11, Page E210-E214, November 2025.
ABSTRACT Solitary fibrous tumors (SFTs) are rare neoplasms characterized by spindle neoplastic cell proliferation within collagenous stroma and prominent dilated vasculature. They present a wide histopathological spectrum, ranging from hypocellular lesions with a rich collagenous stroma to hypercellular lesions with scant stroma.
Hiroyuki Okanishi, Mitsuaki Ishida, Naoto Kohno, Isako Kataoka, Mari Tomiuka, Mayumi Uragami, Shizuka Ono, Chihiro Deguchi, Reika Takeda, Yoshitaka Kurisu, Yoshinobu Hirose   +10 more
wiley   +1 more source

Recurrent Meningeal Hemangiopericytoma with Multiple Metastasis and Hypoglycemia: A Case Report

Case Reports in Medicine, 2012
Aims. We report on the unusual case of a 43-year-old man who developed recurrent meningeal hemangiopericytoma and presented with hypoglycemia 6 years after excision of the tumor. Methods and Results.
Jammy Kin Iong Chan, Wah Cheuk, Luen Cheong Ho, Jian-Ming Wen   +3 more
doaj   +1 more source

Definitive Radiotherapy as a Treatment for Presumed Brainstem Meningioma Causing Collet–Sicard Syndrome in Dogs: A Case Series

Veterinary Radiology &Ultrasound, Volume 66, Issue 6, November 2025.
ABSTRACT Collet–Sicard syndrome (CSS) is a rare neurological condition characterized by concomitant dysfunction of cranial nerves (CNs) IX–XII, resulting in variable combinations of dysphagia, dysphonia, and tongue paresis or paralysis. This retrospective case series describes three dogs diagnosed with CSS secondary to a suspected brainstem meningioma ...
Silvia Caeiro, Juan Carlos Serra, Megan Madden, Magdalena Parys   +3 more
wiley   +1 more source

Four Cases of Hemangiopericytoma and the Contribution of Radiotherapy in Their Management

Indian Journal of Neurosurgery, 2017
Hemangiopericytomas are tumors arising from the Zimmerman pericytes. They are characterized by their propensity to recur aggressively and metastasize. Surgery forms the primary treatment modality.
Bhargavi Ilangovan, Neetu Sasikumar, Janos Stumpf, Rathna Devi, Murli Venkatraman, S. Kalyanaraman   +5 more
doaj   +1 more source