Endometrioid differentiation in ovarian sex cord tumor with annular tubules accompanied by gestagenic effect

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⚙ AI-generated summary by qwen3.7-flash, 2026-09-30 ⓘ

A Peutz-Jeghers-negative ovarian sex cord tumor with annular tubules exhibited endometrioid differentiation and induced gestagenic effects in the uterus, representing a novel histological finding.

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Abstract

A case of ovarian sex cord tumor with annular tubules (SCTAT) without Peutz-Jeghers syndrome is presented in which portions of the neoplasm showed endometrioid differentiation. In addition, histologic examination of endometrium obtained from curettings and hysterectomy specimen revealed atrophic glands and a decidual type stroma, indicating a possible gestagenic effect of the ovarian tumor. The latter has so far been only briefly alluded to in the literature, whereas to the best of the authors' knowledge, endometrioid differentiation has not yet been reported to occur in SCTAT.

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Condition tags

endometriosis

MeSH descriptors

Adenocarcinoma Endometriosis Ovarian Neoplasms Adenocarcinoma Adenocarcinoma Adult Adult Endometriosis Endometriosis Endometrium Endometrium Endometrium Female Female Humans Humans Ovarian Neoplasms Ovarian Neoplasms

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Source provenance

europepmc
last seen: 2026-10-11T09:27:45.537177+00:00
pubmed
last seen: 2026-10-08T21:47:03.166880+00:00
unpaywall
last seen: 2026-05-14T19:30:52.867331+00:00
License: public-domain-us · commercial use OK · attribution required
Courtesy of the U.S. National Library of Medicine