%0 Journal Article %A Rawan Abdulrahim A Jalil %A Abeer Isa Alsada %T Unicornuate uterus with a functional non-communicating horn in adolescent %D 2021 %R 10.1136/bcr-2021-242874 %J BMJ Case Reports %P e242874 %V 14 %N 8 %X Common causes of pelvic pain are primary dysmenorrhoea, Müllerian duct anomalies, outflow obstruction, leiomyoma, endometriosis and adenomyosis. Unicornuate uterus with a rudimentary horn is a rare congenital malformation of the female genital tract, asymptomatic because of lack of functional endometrium. This study presents a rare case of a non-communicating functional rudimentary horn. A 16-year-old unmarried Yemeni female adolescent with a history of irregular painful menstrual period visited Obstetrics and Gynaecology outpatient clinic. Pelvic ultrasound was conducted showing an asymmetrical uterine configuration with the non-communicating rudimentary horn on the right side. Laparoscopic excision of the horn was planned for the patient. Non-communicating rudimentary horn with functional endometrium should be considered as a differential diagnosis in the female adolescent with obstructive uterine symptoms. Early diagnosis is crucial. Using the laparoscopic approach, an expert surgeon prefers definitive management to excise the rudimentary horn. %U https://casereports.bmj.com/content/bmjcr/14/8/e242874.full.pdf