Functional Rudimentary Horn as a Rare Cause of Pelvic Pain: A Case Report

INTRODUCTION Pelvic pain results from many causes such as primary dysmenorrhea, uterine anomalies, menstrual outflow obstruction, endometriosis, myoma and adenomyosis. This study reports on a rare case of non-communicating functional rudimentary horn. CASE PRESENTATIONS A 15-year-old nulligravida young woman with a history of severe intermittent pelvic pain presented a 4-5 centimeter mass. A surgical procedure for appendicitis was previously performed on this patient. Per-operative diagnosis was myoma and suspicion of leismus sarcoma. Laparotomy revealed left rudimentary horn, non-communication was confirmed by postoperative hysterosalpingogram (HSG) and magnetic resonance imaging (MRI). Resection of mass and left fallopian tube was done during the second surgery. CONCLUSIONS Rudimentary horn should be considered in differentiation of pelvic pain and mass in young females. Early diagnosis and horn resection prevents emergency surgery and reliefs pain.