TY - JOUR T1 - Pelvic splenosis mimicking a suspicious adnexal mass JF - BMJ Case Reports JO - BMJ Case Reports DO - 10.1136/bcr-2021-243505 VL - 14 IS - 7 SP - e243505 AU - Clarisse Peter AU - Jean-Christophe Tille AU - Diomidis Botsikas AU - Patrick Petignat Y1 - 2021/07/01 UR - http://casereports.bmj.com/content/14/7/e243505.abstract N2 - A 58-year-old asymptomatic woman was referred to our gynecologic oncology unit for the management of a left adnexal mass found during a routine gynecologic examination. Her personal history included an emergency splenectomy at the age of 4 years old, following traumatic splenic laceration after a car accident. The patient’s work-up (including transvaginal ultrasound and MRI) confirmed a pelvic solid mass, which was reported as suspicious for malignancy and classified as Ovarian-Adnexal Reporting & Data System-MRI 5. An exploratory laparoscopy was performed, showing a reddish blue lesion located at the left broad ligament. Histologic analysis showed the presence of splenic tissue and normal adnexa. The postoperative follow-up was uneventful.Pelvic splenosis is a challenging diagnosis rarely made preoperatively due to concern for malignancy. In the presence of a pelvic mass, the collection of a detailed patient’s history, including information about previous splenic rupture, might raise suspicion for pelvic splenosis. ER -