Abstract
Background: müllerian duct remnant is a disease which was reported infrequently. The cyst’s size in this case is even rarer. We performed surgery on this patient and introduced the procedure in detail. Case presentation: We present a case that a 58-year-old patient with a huge müllerian duct remnant between the prostate and rectum. Magnetic resonance imaging and computed tomography scan of abdominal and pelvic showed that a cystic lesion with a size of 14×10×10 cm in the pelvic cavity. There were no surgical contraindications were found after some related preoperative examinations, so the laparoscopic surgery was performed. The features of the mass of postoperative pathologic examination presented that the characteristics are consistent with the Müllerian duct. Conclusions: Laparoscopic excision is a perfect way to manage müllerian duct remnant. This way can get good outcome and minimize the damage to the patient.