Hemangiopericytoma with Intratumoral Bleeding and Intramuscular Metastasis of the Stomach, Report of a Case Masanori Nakagawara 1 , Ken-ichi Yoshida 1 , Naohito Shirai 1 , Hideki Kataoka 1 , Mamiko Ohtake 1 1Department of Gastroenterology, Seirei Hamamatsu General Hospital Keyword: 胃腫瘍 , hemangiopericytoma , 腫瘍内出血 pp.929-934
Published Date 1998/5/25
DOI https://doi.org/10.11477/mf.1403103736
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 Hemangiopericytoma is a relatively rare tumor originating from pericytes in organs. A 53-year-old woman was admitted to our hospital with sudden anemia and faintness. She had no history of gastrointestinal bleeding, but a fist-size tumor in the area around the gastric antral greater curvature was found. Subtotal gastrectomy was performed and it was shown that the tumor consisted of a 1.5 cm intramuscular tumor at the antrum and a 4 cm tumor with hematoma at the antral greater curvature. The tumor was histologically diagnosed as hemangiopericytoma by using the silver impregnation method for detecting silver staining fibers and the electron microscope. Recurrence has not been noted for 43 months. Up to date, 18 cases of hemangiopericytoma originating from the stomach have been reported in Japan, but there has been no case known to have caused anemia due to intratumoral bleeding.

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