LAUSR

Rationale: Ovarian cystadenofibroma is a relatively rare benign ovarian tumor. Ovarian remnant syndrome (ORS) is a rare complication of bilateral salpingo-oophorectomy (BSO). We report a rare case of ORS with paraintestinal ovarian serous cystadenofibroma that developed 30 years after total abdominal hysterectomy and BSO in a 73-year-old woman. Patient concerns: A 73-year-old woman complained of long-term lower abdominal discomfort. Diagnosis: She was diagnosed with a cystic lesion in the lower abdomen on transabdominal ultrasonography. Further diagnostic imaging and laboratory tests could not exclude a diagnosis of malignancy. Interventions: The patient underwent laparoendoscopic single-site surgery. We found one cystic lesion 5 cm in size with multiple septa that was adhered to the small bowel. We consulted a general surgeon for tumor resection. Dissection was performed and the specimen was then removed from the umbilical wound. Outcomes: Histopathological examination revealed an ovarian serous cystadenofibroma. The postoperative recovery was uneventful. Lessons: Patients with lower abdominal pain after a previous hysterectomy and BSO should be examined with transabdominal sonography for ORS.