A clinico-pathological study on myogenic tumor of the stomach. Including differential diagnosis by means of endoscopic ultrasonography.

DOI
  • HASE Satoshi
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • NAKAZAWA Saburo
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • YOSHINO Junji
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • KOIKE Mitsumasa
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • NAKAMURA Tuneya
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • GOTO Hidemi
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • YAMANAKA Toshihiro
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • FUKUI Akira
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • TAKANO Ken-ichi
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • KOJIMA Youji
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • ARISAWA Tomiyasu
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • OHASI Shinji
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • OSADA Toshimasa
    The Second Department of Internal Medicine, Nagoya University School of Medicine
  • NIWA Yasumasa
    The Second Department of Internal Medicine, Nagoya University School of Medicine

Bibliographic Information

Other Title
  • 胃筋原性腫ようの臨床的検討　　ＥＵＳによる良・悪性の鑑別診断を含めて
  • -INCLUDING DIFFERENTIAL DIAGNOSIS BY MEANS OF ENDOSCOPIC ULTRASONOGRAPHY-
  • ―EUSによる良・悪性の鑑別診断を含めて―

Abstract

A study was made on the clinical findings and the histological findings of gastric myogenic tumor in 16 cases of leiomyoma (LM) and 8 cases of leiomyosarcoma (LMS), which were surgically resected. In 10 cases (7 cases of LM, 3 cases of LMS), on which endoscopic ultrasonography (EUS) was performed preoperatively, EUS findings were compared with those of histology. Only from the clinical findings, it was quite difficult to determine whether a myogenic tumor is malignant or not, that is, LM or LMS. In contrast, the macroscopic necrosis inside of the tumor was more frequent and extensive in LMS ; the incidence was 75.0% in LMS, and 12.5% in LM. The liquefaction necrosis was seen in 3 cases of LMS. On the other hand, ultrasonographic pattern of the internal echo of the tumor was classified into 3 groups (A, B and C type). All of A and B types were consistent with LM, and all of C type with LMS. Histologically, the hyperechoic area of B type corresponded to hyaline degeneration, and the sonolucent area of C type to liquefaction necrosis. In conclusion, LM may be visualized as A and B type, and LMS as A, B and C type by EUS. But B type may indicate the possibility of LMS and, therefore, repeated careful observation or occasional operative intervention should be needed. Especially, EUS finding of the sonolucent area within gastric myogenic tumor (C type) should strongly suggest the possibility of LMS.

Journal

Details 詳細情報について

  • CRID
    1390282679190336000
  • NII Article ID
    130004252521
  • DOI
    10.11280/gee1973b.30.538
  • ISSN
    18845738
    03871207
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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