Primary adenomyoma of the fallopian tube mimicking tubal malignant tumor

Tomomaro Etoh, Yoh Watanabe, Izumi Imaoka, Takamichi Murakami, Hiroshi Hoshiai
In: Journal of Obstetrics and Gynaecology Research · 2012 · vol. 38(4) , pp. 721–723 · doi:10.1111/j.1447-0756.2011.01764.x · PMID:22380532 · W1589110715
article OA: closed CC0 ⤵ 2 in-corpus citations
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⚙ AI-generated summary by claude@2026-06, 2026-06-09 ⓘ

This case report details a rare instance of a primary adenomyoma confined to the fallopian tube that presented radiologically and clinically as a malignant tubal tumor in a 45-year-old woman.

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Abstract

We report a rare case of adenomyoma localized only in the left fallopian tube mimicking tubal malignant tumor. A 45-year-old woman presented with mild pelvic pain, dysmenorrhea and left adnexal mass. Magnetic resonance imaging showed a solid tumor, suspected primary cancer of the fallopian tube, and serum carbohydrate antigen 125 was elevated to 72 U/mL (normal; 0-35). At surgery, the tumor was revealed as a left fallopian tube tumor without torsion. Postoperative histopathology showed that the tumor included bundle-like growing non-atypical leiomyoma cells and ectopic normal endometrium accompanied with endometrial stroma and we diagnosed primary adenomyoma of the left fallopian tube. Adenomyoma localized only in the fallopian tube is a rare entity and it can occur only in the fallopian tube.

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Condition tags

dysmenorrhea

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