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A Case of Bizarre Leiomyoblastoma Preoperatively Diagnosed by Biopsy Y. Kurauchi 1,2 , T. Kojima 2 , M. Arao 2 , B. Tabata 2 , T. Yoshii 3 1Kurauchi Surgery Hospital pp.437-440
Published Date 1975/4/25
DOI https://doi.org/10.11477/mf.1403112270
  • Abstract
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 A 44-year-old male began to have hunger epigastralgia in May 1973 and was hospitalized 1 week later for minute examination.

 Double contrast image in supine position revealed a well-defined elevated lesion with a central niche in the posterior wall of gastric body. A few bridging folds were noted. With gastrofiberscopy, the lesion was found to be covered by the smooth mucosa having usual color. The base of ulcer demonstrated some hemorrhagic foci and a relatively small amount of necrotic material covering. Two biopsy materials obtained from the margin of ulcer showed neoplastic tissue. The tumor cells were arranged densely and solidly without alveolar structure. The majority of tumor cells were spherically swollen by vacuolar degeneration. Special stainings for glycogen, mucus and fat revealed negative results. Some tumor cells were spindle in shape, representing smooth-muscle character. From these findings, the lesion was diagnosed as bizarre leiomyoblastoma. From Stout's criteria, the lesion was regarded to be benign, because mitosis was scarcely seen.

 Gastrectomy was carried out on May 31, 1973. The tumor was located mainly in the submucosa and partly in the proper muscle coat and considered to have arisen from the proper muscle coat.


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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