Hemangiopericytoma, True Pericytic Tumors and Mimics
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چکیده
منابع مشابه
Hemangiopericytoma associated with multiple keratocystic odontogenic tumors in an adolescent patient: a case report.
Hemangiopericytoma, initially described by Stout and Murray in 1942 (1), is a rare vascular tumor arising from mesenchymal cells with pericytic differentiation. Hemangiopericytomas usually occur in the 5th decade of life and account for 3-5% of all soft tissue sarcomas and 1% of all vascular tumors (2). The tumor usually occurs in the limbs, pelvis, or head and neck region; 15-30% of all hemang...
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An intranasal glomus tumor and a sinonasal hemangiopericytoma-like tumor are reported. Both patients were elderly women suffering from nasal bleeding, and presented with a polypoid mass arising in the nasal septum. Microscopically, the glomus tumor displayed a proliferation of uniform rounded or cuboidal epithelioid cells arranged in sheets and interrupted by a rich vasculature with a character...
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Spectrum of Fibroblastic and Myofibroblastic Tumors When one considers soft tissue tumors in pediatrics, tumors of vascular (29%), neurogenic (15%), and myogenic (striated muscle, 14%) origin occur more often than fibroblastic-myofibroblastic tumors (12%). The spectrum of fibroblastic/myofibroblastic tumors is quite divergent from both clinical and histopathologic viewpoints (Table 1). These tu...
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Hemangioperycytoma is a rare perivascular tumor that seldom involves the urogenital system. This tumor often appears with an unspecific clinical picture, and sometimes is associated with hematuria or hypertension. Diagnosis is based on a combination of histological and immunohistological findings. We report a case of a 52-year-old patient with renal hemangiopericytoma who underwent surgical tre...
متن کاملSinonasal Hemangiopericytoma: A Case Re-port
Hemangiopericytoma is a vascular tumor that is rarely seen in the nose and paranasal sinuses. Biological behavior of these tumors is not completely known, and their natural history is not predictable. This case report presents a patient with a sinonasal hemangiopericytoma. Diagnosis and management of these uncommon tumors is discussed.
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