Florid polypoid endometriosis exacerbated by tamoxifen therapy in breast cancer

article OA: closed CC0 ⤵ 22 in-corpus citations
View on OpenAlex View on PubMed View at publisher
AI-generated summary by claude@2026-06, 2026-06-08

This case report describes a premenopausal breast cancer patient whose tamoxifen therapy appeared to exacerbate florid polypoid endometriosis, suggesting hormonal therapy may need careful consideration in patients with pre-existing endometriosis.

One-sentence paraphrase of the abstract; not a substitute for reading it. No clinical advice. How this works

Abstract

BACKGROUND: We report an unusual case where tamoxifen may have exacerbated the growth of multiple polypoid endometriotic implants. CASE: A premenopausal woman with right breast intraductal carcinoma underwent modified radical mastectomy and received six courses of chemotherapy, followed by continuous oral tamoxifen. Irregular vaginal bleeding was noted 5 years after the mastectomy and transvaginal ultrasound detected a 6-cm cul-de-sac mass. The serum CA 125 level was 138.86 U/mL. Surgical pathology showed florid polypoid endometriosis over the resected rectal segment and endometriotic implants over multiple biopsy sites of the peritoneal surface. CONCLUSION: The estrogenic effects of tamoxifen may have induced florid endometriosis in this hypoestrogenic woman. If breast cancer patients have preexisting endometriosis, adjuvant hormonal therapy other than tamoxifen should be considered.

My notes (saved in your browser only)

Condition tags

endometriosis

MeSH descriptors

Antineoplastic Agents, Hormonal Breast Neoplasms Endometriosis Tamoxifen Adult Antineoplastic Agents, Hormonal Antineoplastic Agents, Hormonal Breast Neoplasms Endometriosis Endometriosis Endometriosis Female Humans Peritoneal Diseases Peritoneal Diseases Rectal Diseases Rectal Diseases Tamoxifen Tamoxifen

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.

References (8)

Cited by (22)

Source provenance

europepmc
last seen: 2026-06-13T06:22:48.782012+00:00
openalex
last seen: 2026-06-10T17:14:06.276822+00:00
pubmed
last seen: 2026-05-13T22:12:44.121522+00:00
unpaywall
last seen: 2026-06-15T06:18:04.506796+00:00
License: CC0 · commercial use OK