Pseudocyst Formation in Residual Ovary Syndrome: A Unique Consequence of Ovarian Preservation.

Residual ovary syndrome (ROS) is a consequence of ovarian preservation after pelvic surgery. One unique and understudied manifestation of ROS includes patients who present with pseudocyst formation. These patients often have a history of multiple pelvic surgeries. Although the etiology is poorly understood, ovarian pseudocysts presumably develop because of ovulation into an enclosed space secondary to the formation of inflammatory adhesions. Herein, we describe a small cohort of patients with ROS from pseudocyst formation to highlight a rational approach to the diagnosis and management of this rare condition. This report brings attention to this uncommon but important cause of ROS.