In dogs and men, hemangiopericytoma is a well-recognised neoplasm, thought to originate from vascular pericytes. In cats, however, hemangiopericytoma is an extremely rare finding. The present report describes the pathological features of a 7-cm-diameter, dense, white, multilobulated tumour-like growth on the thigh of a ten-year-old Persian cat. Histologically, the mass consisted of polygonal ne...

INTRODUCTION Hemangiopericytoma is an uncommon perivascular tumor. Rectal Hemangiopericytomas are extremely rare. To the best of our knowledge, only two cases have been reported in the literature. CASE PRESENTATION We report the case of a 37-year-old Asian woman with an Hemangiopericytoma rising from the anterior wall of her rectum. Abdominopelvic computed tomography showed a 7.4 cm solid mas...

The present study aimed to evaluate the radiological and pathological features of intracranial hemangiopericytoma, and improve the understanding of this tumor. A retrospective analysis of radiological and pathological features of five cases of intracranial hemangiopericytoma was conducted between 2006 and 2012 in the Second Xiangya Hospital of Central South University. A total of five cases (th...

Background: We are the first to report one-staged resection of a spinal metastasis from malignant cranial hemangiopericytoma after preoperative OnyxTM-20 embolization by direct percutaneous puncture. Spinal metastases from cranial hemangiopericytoma are extremely rare. Surgical morbidity of these highly vascularized tumours results mainly from excessive blood loss. Preoperative embolization of ...

Hemangiopericytoma (HPC) is an exceedingly rare tumor of uncertain malignant potential. Approximately 300 cases of HPC have been reported since Stout and Murray described HPCs as "vascular tumors arising from Zimmerman's pericytes" in 1942. After further characterization, the WHO reclassified HPC as a fibroblastic/myofibroblastic tumor. Long term follow up is mandatory because the histologic cr...