Abstract
A 65-year-old woman had a painless abdominal mass. The patient's serum CA125 level was high. Computed tomography and magnetic resonance imaging of the abdomen showed a 50-mm, lobulated tumor on the lower abdominal wall and multiple high density masses in the intra-abdominal cavity. Both ovaries and the uterus were normal. The accumulation of fluorodeoxyglucose was seen in the masses on positron emission tomography. Aspiration biopsy cytology of the abdominal wall tumor indicated the presence of malignancy, but the primary lesion could not be identified. The patient had an abdominal tumor resection, as well as debulking surgery with a right hemi-colectomy.
Histological examination showed papillary growth of cubic shaped malignant cells. The final diagnosis was primary peritoneal serous papillary adenocarcinoma. After surgery, the patient recieved combination chemotherapy (carboplatin and paclitaxel) to date, no evidence of tumor recurrence has been found.
