Mayer–Rokitansky–Küster–Hauser Syndrome With Concurrent Adenomyosis and Leiomyoma in Rudimentary Uterus: A Case Report

We report a rare case of Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome accompanied by simultaneous adenomyosis and leiomyoma in rudimentary uterine remnants. A 35-year-old woman presented with progressive lower abdominal pain and underwent diagnostic imaging. The initial ultrasound erroneously suggested an adnexal mass, but subsequent imaging revealed bilateral uterine remnants-one with adenomyotic changes and the other harboring a leiomyoma. Laparoscopic excision confirmed these pathological findings. This case suggests the importance of regular gynecological imaging examinations for MRKH patients and challenges the conventional belief in the non-functional nature of Müllerian remnants. Furthermore, our findings underscore the diagnostic utility of transabdominal ultrasound in accurately identifying complex uterine anomalies.