Coexistence of malacoplakia and mullerianosis in the urinary bladder: An uncommon pathology

Malacoplakia is an inflammatory lesion which can affect any organ in the body but predominantly affects the genitourinary system and mainly the bladder. Malacoplakia of the bladder has variable presentations and is associated with urinary infection or immunosuppression. Mullerianosis of the bladder is a rare lesion that consists of two out of the three tissues, endometriosis, endocervicosis, or endosalpingiosis. It is usually associated with a previous cesarean section or pelvic surgery. The diagnosis is confirmed on histopathological examination. Malacoplakia and mullerianosis are usually isolated lesions of the bladder. We present a unique case of coexistence of malacoplakia and mullerianosis in the urinary bladder, reported for the first time in the literature.