Endometriosis in a Prepubertal Patient with 46,XY Difference in Sex Development: A Case Report

Endometriosis typically presents in postmenarchal patients with cyclic and acyclic pelvic pain. However, there are reports of endometriosis in premenarchal patients. We report a 10-year-old individual with 46,XY difference of sex development who was found to have endometriosis at the time of laparoscopic gonadectomy for gonadoblastoma. Although rare, endometriosis can occur in 46,XY individuals prior to puberty, highlighting the complex origin of the disease.