Diverticulum-like Adenomyosis on the Cesarean Scars of the Uterus: A Rare Type of Cystic Adenomyosis

Abstract

A 43-year-old woman was admitted to the hospital with prolonged menstruation after cesarean delivery for 14 years and intermenstrual bleeding for half a year. Magnetic resonance imaging and ultrasonography revealed a mass of 3.3 cm in diameter located on the left uterine isthmus, connected to the uterine cavity (Fig. 1). The cesarean scar defect was explored by hysteroscopy, and a diverticulum with viscous chocolate-like fluid inside was found on the left wall of the cesarean scar defect (Fig. 2A).