{"title":"A case of undifferentiated pleomorphic rectal sarcoma occurring after radiation exposure.","authors":"Makoto Eizuka, Yosuke Toya, Shun Yamada, Tomofumi Oizumi, Shunichi Yanai, Norihiko Kudara, Naoki Yanagawa, Tamotsu Sugai, Takayuki Matsumoto","doi":"10.1007/s12328-024-02026-6","DOIUrl":null,"url":null,"abstract":"<p><p>A 72 year-old man was referred to our hospital for a detailed examination of a recurrent rectal polyp. He had past histories of surgery and radiation therapy for prostate cancer at the age of 66 and endoscopic excision of a rectal polyp at the age of 70. Colonoscopy revealed a semi-pedunculated lesion surrounded by friable mucosa, which was positive under positron-emission tomography-computed tomography. Histopathological examination of the endoscopically excised polyp revealed proliferation of atypical cells, characterized by strong pleomorphic or spindle morphology, which was immunohistochemically compatible with undifferentiated pleomorphic sarcoma. We diagnosed this case as sarcoma presumably associated with radiation proctitis.</p>","PeriodicalId":10364,"journal":{"name":"Clinical Journal of Gastroenterology","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11549194/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical Journal of Gastroenterology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s12328-024-02026-6","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/8/9 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"GASTROENTEROLOGY & HEPATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
A 72 year-old man was referred to our hospital for a detailed examination of a recurrent rectal polyp. He had past histories of surgery and radiation therapy for prostate cancer at the age of 66 and endoscopic excision of a rectal polyp at the age of 70. Colonoscopy revealed a semi-pedunculated lesion surrounded by friable mucosa, which was positive under positron-emission tomography-computed tomography. Histopathological examination of the endoscopically excised polyp revealed proliferation of atypical cells, characterized by strong pleomorphic or spindle morphology, which was immunohistochemically compatible with undifferentiated pleomorphic sarcoma. We diagnosed this case as sarcoma presumably associated with radiation proctitis.
期刊介绍：
The journal publishes Case Reports and Clinical Reviews on all aspects of the digestive tract, liver, biliary tract, and pancreas. Critical Case Reports that show originality or have educational implications for diagnosis and treatment are especially encouraged for submission. Personal reviews of clinical gastroenterology are also welcomed. The journal aims for quick publication of such critical Case Reports and Clinical Reviews.
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