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Bizarre Leiomyoblastoma of the Stomach, a Case Report O. Endo 1 , R. Sassa 1 1The Institute for Adult Diseases, Asahi Life Foundation pp.937-941
Published Date 1975/7/25
DOI https://doi.org/10.11477/mf.1403112423
  • Abstract
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 A bizarre leiomyoblastoma in a 22-year-old woman is reported. She was admitted because of epigastralgia and anemia. Upper gastrointestinal series demonstrated a deep niche on lesser curvature of the antrum. Gastroscopically, a large elevated lesion with deep ulceration on the surface was observed at the same site. Although gastric biopsy was negative for malignancy, a tentative diagnosis of submucosal malignant tumor was reached on upper G. I. series and gastroscopy. Partial gastrectomy with gastrojejunostomy was performed.

 Gross findings of the resected stomach showed a extraluminally growing, 6.5×7.5×4.5 cm tumor on the lesser curvature of the antrum. Deep ulceration was seen on the surface of the tumor. A large number of tiny abscesses were found in the anal peritumoral tissue. Microscopically, short spindle or polygonal cells with clear spaces around the nucleus were seen. Based on these microscopic findings, diagnosis of bizarre leiomyoblastoma were established.

 The microscopic structure and prognosis of this type of tumor is characteristic. The majority of them are benign, and our patient is also well and alive 30 months after operation. Some of them, however, would metastasize, and mitotic rate of the tumor is the best criterion for prognosis.


Copyright © 1975, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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