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  • Title: An immunohistochemical study of sinonasal hemangiopericytoma.
    Author: Yokoi H, Arakawa A, Kuribayashi K, Inoshita A, Haruyama T, Ikeda K.
    Journal: Auris Nasus Larynx; 2011 Dec; 38(6):743-6. PubMed ID: 21601390.
    Abstract:
    We present herein the imaging and pathological features of a 28-year-old male with a sinonasal hemangiopericytoma-like tumor occupying the left nasal meatus. At the initial visit, a nasal polyp was suspected, but, as the patient was bleeding readily, an angiomatoid lesion was also regarded as a possible diagnosis. Based on a thorough histopathological analysis, a sinonasal hemangiopericytoma-like tumor was diagnosed. Hematoxylin and eosin staining also showed a mild degree of nuclear pleomorphism and a slight increase in mitotic activity, and immunohistochemical studies using anti-CD34, MIB-1, and Vimentin antibodies were useful for distinguishing the hemangiopericytoma-like tumor from true hemangiopericytoma and a solitary fibrous tumor.
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