Endometrioid carcinoma of the rectum arising in endometriosis

Lott JV, James V. Lott, J V Lott, R J Rubin, Rubin RJ, Robert J. Rubin, SALVATI EP, Eugene P. Salvati, E P SALVATI, Gerardo H. Salazar, Salazar GH, G H Salazar
Diseases of the colon and rectum · 1978 · vol. 21(1) , pp. 56–60 · doi:10.1007/bf02586549 · PMID:639640 · W2062959332
article OA: closed CC0 ⤵ 24 in-corpus citations
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⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-10 ⓘ

This case report details an endometrioid carcinoma arising in rectal endometriosis that persisted and degenerated into cancer despite treatment, believed to be due to diethylstilbestrol use.

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This case report describes a patient who developed an endometrioid carcinoma within a rectal endometriosis implant despite undergoing bilateral salpingo-oophorectomy. The malignancy was initially misidentified as arising from the rectal mucosa based on gross examination, requiring microscopic analysis for accurate diagnosis. The authors attribute the progression of the lesion to the patient’s continued use of diethylstilbestrol after surgery. This paper is centrally about endometriosis — specifically the rare malignant transformation of an endometrial implant located in the rectum into endometrioid carcinoma.

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Abstract

The case of a patient with an endometrioid carcinoma arising in endometriosis of the rectum is presented. This lesion grossly appeared to be a carcinoma arising from the rectal mucosa until microscopic examination of the specimen was completed. The endometrial implant continued to grow and eventually degenerated into a carcinoma in spite of bilateral salpingoophorectomy. This was believed to be due to maintenance of the patient on diethylstilbestrol. This case is believed to be the ninth reported case of carcinoma arising in an endometrial implant in the colon or rectum.
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Endometrioid carcinoma of the rectum arising in endometriosis: PDF Only Endometrioid carcinoma of the rectum arising in endometriosis Report of a case - James V. Lott - Robert J. Rubin - Eugene P. Salvati - Gerardo H. Salazar Summary The case of a patient with an endometrioid carcinoma arising in endometriosis of the rectum is presented. This lesion grossly appeared to be a carcinoma arising from the rectal mucosa until microscopic examination of the specimen was completed. The endometrial implant continued to grow and eventually degenerated into a carcinoma in spite of bilateral salpingo-oophorectomy. This was believed to be due to maintenance of the patient on diethyl-stilbestrol. This case is believed to be the ninth reported case of carcinoma arising in an endometrial implant in the colon or rectum. Copyright © The ASCRS 1978

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Condition tags

endometriosis

MeSH descriptors

Adenocarcinoma Endometriosis Rectal Neoplasms Uterine Neoplasms Adenocarcinoma Endometriosis Endometriosis Female Humans Middle Aged Rectal Neoplasms Uterine Neoplasms

Citation neighborhood

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

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