{"paper_id":"90fb3919-0d86-45ba-a6e2-a4270ff0a331","body_text":"Year 2015 / Volume 107 / Number 12\nCase Report\nCase Report\nMalignant degeneration of rectal endometriosis\n761-764DOI: 10.17235/reed.2015.3648/2014\nJosé Andrés García Marín, Enrique Manuel Pellicer Franco, Victoriano Soria Aledo, Mónica Mengual Ballester, Graciela Valero Navarro, José Luis Aguayo Albasini,\nAbstract\nBackground: Endometriosis is a relatively common disease among women with child-bearing potential, and rare before puberty or following menopause. It consists of the presence of hormone-responsive endometrium outside the endometrial cavity.\nCase report: We report the case of a patient with a rectal lesion, initially approached as a primary rectal malignancy, where histopathology eventually revealed an adenocarcinoma arising from endometrial tissue in the colonic wall.\nDiscussion: Endometriosis has an estimated rated of 10-20%. Sites may be split up into two larger categories - gonadal and extragonadal. The frequency of extragonadal endometriosis in the bowel is estimated to involve 3%-37% of women with pelvic endometriosis, and most lesions are found in the sigmoid colon and rectum. The malignant transformation of endometriotic lesions is estimated between 0.3% and 1% of cases. The gold standard in the diagnosis of intestinal endometriosis is exploratory laparotomy and the pathological study of specimens. Adjuvant radiotherapy and chemotherapy, although used for some patients, have not proven effective.\nNew comment\nComments\nNo comments for this article\nRelated articles\nLetter\nSuccessful endoscopic management of severe low rectal stenosis caused by chemical burns\nDOI: 10.17235/reed.2024.10868/2024\nLetter\nDOI: 10.17235/reed.2024.10535/2024\nDigestive Diseases Image\nA long rectal foreign body successfully removed after colonoscopy\nDOI: 10.17235/reed.2024.10251/2024\nDigestive Diseases Image\nDOI: 10.17235/reed.2023.9893/2023\nDigestive Diseases Image\nGastric heterotopia in the rectum: a rare entity with potential pitfalls\nDOI: 10.17235/reed.2023.9693/2023\nLetter\nDOI: 10.17235/reed.2022.9273/2022\nDigestive Diseases Image\nCyclic hematochezia in a young woman with appendiceal endometriosis\nDOI: 10.17235/reed.2022.9257/2022\nLetter\nHilar cholangiocarcinoma presenting with hematochezia due to metastases to the rectum\nDOI: 10.17235/reed.2022.9173/2022\nLetter\nResection of an anal fistula with endoscopic submucosal dissection\nDOI: 10.17235/reed.2022.9002/2022\nLetter\nIleal endometriosis in a patient with Crohn’s disease: a diagnostic challenge\nDOI: 10.17235/reed.2021.8187/2021\nLetter\nEndometriosis-associated intestinal tumors: a new challenge in clinical practice\nDOI: 10.17235/reed.2021.8140/2021\nLetter\nAppendicular invagination as a rare manifestation of endometriosis\nDOI: 10.17235/reed.2020.7002/2020\nLetter\nLaparoscopic management of a small bowel obstruction caused by an endometriotic focus\nDOI: 10.17235/reed.2019.6220/2019\nLetter\nDOI: 10.17235/reed.2018.5732/2018\nLetter to the Editor\nBowel obstruction secondary to deep infiltrating endometriosis of the ileum\nDOI: 10.17235/reed.2018.5364/2017\nLetter to the Editor\nIleocecal endometriosis as an infrequent cause of intussusception\nDOI: 10.17235/reed.2017.5183/2017\nLetter to the Editor\nUtility of neoadjuvant therapy in rectal GIST\nDOI: 10.17235/reed.2017.4751/2016\nDigestive Diseases Image\nLetter to the Editor\nDOI: 10.17235/reed.2016.4393/2016\nCase Report\nPrimary squamous cell carcinoma of the rectum: an atypical histology\nDOI: 10.17235/reed.2016.3975/2015\nDigestive Diseases Image\nActinomyces infection as a complication of a post-radiotherapy rectal ulcer\nCase Report\nEndoscopic resection of rectal granular-cell tumor using elastic band ligation\nDOI: 10.17235/reed.2016.3823/2015\nCitation tools\nGarcía Marín J, Pellicer Franco E, Soria Aledo V, Mengual Ballester M, Valero Navarro G, Aguayo Albasini J, et all. Malignant degeneration of rectal endometriosis. 3648/2014\nDownload the citation for this article by clicking on one of the following citation managers:\nMetrics\nPublication history\nReceived: 15/12/2014\nAccepted: 12/02/2015\nOnline First: 17/11/2015\nPublished: 03/12/2015\nArticle revision time: 51 days\nArticle Online First time: 337 days\nArticle editing time: 353 days\nShare\nThis article hasn't been rated yet.\nReader rating:\nValora este artículo:\nSubmit a manuscript\nJournal info\nArticles\nSubmit a manuscript\nJournal info\nArticles\nSubmit a manuscript\nThe Spanish Journal of Gastroenterology is the official organ of the Sociedad Española de Patología Digestiva, the Sociedad Española de Endoscopia Digestiva and the Asociación Española de Ecografía Digestiva\nCookie policy\nPrivacy Policy\nLegal Notice\n© Copyright 2026 y Creative Commons. The Spanish Journal of Gastroenterology","source_license":"CC0","license_restricted":false}