The authors report a case of gastric hemangiopericytoma. This tumor, histogenetically derived from pericytes, has been detected in any tissue or structure. According to the review of the literature, the hemangiopericytoma of the stomach occurred very uncommonly, being published only 29 cases. Diagnosis is based on histological and immunohistochemical techniques. Surgery is the main therapy but the impredictable biological behaviour require different strategies.
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