Diagnosis of metastasis of ovarian clear cell carcinoma to the peritoneum of the abdominal wall by positron emission tomography with (fluorine-18)-2-deoxyglucose.

A 43-year old woman, operated on for ovarian clear cell carcinoma (stage IIc) four years previously was found to have a small mass under the abdominal wall in the right lower quadrant of the abdomen. Neither diagnostic imaging (ultrasonography and MRI) nor tumor markers showed any evidence of recurrence, but positron emission tomography revealed a hot spot area, and it was diagnosed as recurrence of the ovarian carcinoma. The postoperative histopathological diagnosis was metastasis of ovarian carcinoma to the peritoneal wall.