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Japanese

A case of rectal gastrointestinal stromal tumor locally resected with prostate cancer under laparoscopic and transanal approach Takehiro SHIRAISHI 1 , Yoshiki KAJIWARA 1 , Eiji SHINTO 1 , Masato YAMADERA 1 , Keiichi ITO 2 , Hideki UENO 1 1Department of Surgery, National Defense Medical College 2Department of Urology, National Defense Medical College Keyword: 直腸GIST , 前立腺癌 , 腹腔鏡 pp.537-544
Published Date 2018/7/15
DOI https://doi.org/10.11477/mf.4426200584
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A 64-year-old man underwent detailed examinations for prostate cancer. Magnetic resonance images of the pelvis demonstrated a 14-mm submucosal tumor located between the prostate and left anterior wall of the lower rectum. Transrectal biopsy revealed it to be rectal gastrointestinal stromal tumor (GIST). We performed en bloc resection of both tumors under laparoscopic and transanal surgery to avoid exposure and implantation to the operative field. The rectum was mobilized laparoscopically. Then, transanal partial resection of the rectal wall was performed with full-thickness incision so that the rectal GIST and the prostate could be united ; the resected lesion was sutured. Laparoscopic radical prostatectomy was performed to remove the tumors en bloc. Histological diagnosis indicated that the surgical margins of both tumors were negative. Coexistence of rectal GIST and prostate cancer is rare. We successfully resected both tumors without dyschezia or impairing the curability.


Copyright © 2018, JAPAN SOCIETY FOR ENDOSCOPIC SURGERY All rights reserved.

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電子版ISSN 2186-6643 印刷版ISSN 1344-6703 日本内視鏡外科学会

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