Primary peritoneal clear cell carcinoma.

The computed tomography (CT) and magnetic resonance imaging findings of primary peritoneal clear cell carcinoma in a 53-year-old woman are reported. A CT scan showed a complex cystic mass with solid components that involved the right upper quadrant and displaced the liver and the right kidney. Magnetic resonance imaging revealed a multicystic mass with hemorrhage and heterogeneous solid protrusions. The diagnosis of primary peritoneal clear cell carcinoma was made by histopathologic study of the surgical specimen.