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Japanese

Gastric Metastasis of Prostate Sarcoma, Report of a Case Masafumi Takatsuna 1,4 , Ryosuke Nozawa 1 , Hiroki Sato 1 , Ken-Ichi Mizuno 1 , Satoru Hashimoto 1 , Tatsuya Abe 2 , Hajime Umezu 3 , Junji Yokoyama 1 , Manabu Takeuchi 4 , Yoichi Ajioka 2 , Shuji Terai 1 1Division of Gastroenterology and Hepatology, Niigata University, Graduate School of Medical and Dental Sciences, Niigata, Japan 2Division of Molecular and Diagnostic Pathology, Niigata University, Graduate School of Medical and Dental Sciences, Niigata, Japan 3Division of Pathology, Niigata University Medical and Dental Hospital, Niigata, Japan 4Department of Gastroenterology, Nagaoka Red Cross Hospital, Nagaoka, Japan Keyword: 転移性消化管腫瘍 , 前立腺肉腫 , 拡大内視鏡 , ESD , NTRK融合遺伝子 pp.1059-1066
Published Date 2022/7/25
DOI https://doi.org/10.11477/mf.1403202958
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 A 60s man with a slightly elevated type 0-IIa gastric cancer lesion of the anterior wall of the gastric angle underwent screening for prostate enlargement and ESD(endoscopic submucosal dissection)2 months after the screening. When we performed ESD, a white-toned elevated lesion on the great curvature of the gastric body was revealed, which was not previously observed. Magnifying endoscopy with narrow band imaging revealed that the surface structure was almost unstructured, and the glandular duct structure remained although it was rough. ESD was performed on the lesion for diagnosis and treatment. On pathological examination, the tumor was diagnosed as sarcoma. Histological biopsy of the prostate tumor revealed the same sarcoma findings as the gastric tumor. Because the prostate tumor was present before the discovery of the gastric tumor and the lesion appeared 2 months later, it was clinically diagnosed as gastric metastasis of prostate sarcoma.


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