Fig. 4

Venous phase enhanced CT image in a 69-year-old woman shows a well-delineated lesion within the left hemi-pelvis. The peripheral solid component of the lesion shows marked contrast uptake while two well-delineated cystic areas of low signal intensity (C) are seen centrally within the cyst. At histopathology this proved to be a struma ovarii with a papillary microcarcinoma component