Renal endometriosis mimicking complicated cysts of kidney: report of two cases

Case report OA: diamond CC0 ⤵ 11 in-corpus citations
⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-28 ⓘ

Two patients with renal cystic lesions initially misinterpreted as complicated cysts were histologically confirmed to have rare extragenital renal endometriosis.

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Abstract

Endometriosis is a common gynecologic disorder characterized by ectopic endometrial tissue growth outside the uterine cavity. Although usually occurring in pelvic organs, endometrial lesions may involve urinary tract. Renal endometriosis is extremely rare and it has only occasionally been reported in the past. We report two cases of patients with renal cystic lesions, incidentally found at imaging techniques during oncologic follow-up for gastric sarcoma and melanoma, initially misinterpreted as complicated haemorrhagic cysts and then histologically characterized as renal localizations of extragenital endometriosis.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Kidney Diseases, Cystic Adult Adult Diagnosis, Differential Diagnosis, Differential Endometriosis Endometriosis Female Female Humans Humans Kidney Diseases Kidney Diseases Kidney Diseases Kidney Diseases, Cystic Kidney Diseases, Cystic Kidney Diseases, Cystic

Citation neighborhood (2-hop)

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. Outer rings show 2-hop neighbours — papers reached through the immediate citers/citees. [ collapse to 1-hop ]

References (34)

Cited by (12)

Source provenance

europepmc
last seen: 2026-10-15T06:08:49.021275+00:00
openalex
last seen: 2026-06-10T17:14:06.276822+00:00
pubmed
last seen: 2026-10-08T21:21:08.819620+00:00
License: CC0 · commercial use OK