Fibroma ovárico torsionado

We present the case of an 80-year-old patient with a large abdominal tumor erroneously interpreted as ovarian cancer. The patient presented with pain in the right iliac fossa and weight loss of 5 kg in the previous month. Investigations revealed a 17 × 10 cm tumor and a small quantity of ascites. An attempt at paracentesis was unsuccessful. A notable laboratory finding was Ca125: 484 U/ml. Surgical intervention was performed, revealing a twisted ovarian fibroma, without criteria for malignancy, and fibrin implants in Douglas's pouch.