منابع مشابه
Hemangiopericytoma of the neck
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...
متن کاملA population-based analysis of Head and Neck hemangiopericytoma.
OBJECTIVES/HYPOTHESIS Hemangiopericytomas (HPC) are tumors that arise from pericytes. Hemangiopericytomas of the head and neck are rare and occur both extracranially and intracranially. This study analyzes the demographic, clinicopathologic, treatment modalities, and survival characteristics of extracranial head and neck hemangiopericytomas (HN-HPC) and compares them to HPCs at other body sites...
متن کاملHead and neck hemangiopericytoma in a child: case report.
CONTEXT Hemangiopericytoma is a relatively rare tumor, first described in 1942, with approximately 300 cases described in the literature to date. In most cases, it affects the trunk and lower extremities. The head and neck incidence is less than 20%, mostly in adults. We describe a case of malignant head and neck hemangiopericytoma in a child. TYPE OF STUDY Case report. CASE REPORT A twelve...
متن کاملHemangiopericytoma of the tongue.
1 Head and Neck Surgery Resident Hospital Ana Costa, Santos/SP, Brazil. 2 Medical Student Universidade Metropolitana de Santos. 3 MSc in Health Sciences – Graduate Program of the Hospital Heliópolis HOSPHEL, São Paulo/SP. Professor of Surgery Fundação Lusíada UNILUS, Santos/SP. AssistantHead and Neck Surgery Services Hospital Ana Costa and at the Irmandade da Santa Casa da Misericórdia de Santo...
متن کاملProliferation index as a prognostic marker in hemangiopericytoma of the head and neck.
BACKGROUND Hemangiopericytoma (HPC) of the head and neck is a rare neoplasm whose biologic behavior is difficult to predict by means of conventional histologic parameters. METHODS H & E-stained sections from 12 cases of HPC were reviewed. Proliferation index was assessed using an immunoperoxidase stain for MIB-1 (Ki-67). RESULTS The study group consisted of 4 adult men, 5 adult women, and 1...
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ژورنال
عنوان ژورنال: Head & Face Medicine
سال: 2010
ISSN: 1746-160X
DOI: 10.1186/1746-160x-6-23