Brenner Tumor of the Ovary: CT, MRI, and Ultrasound Findings of Calcified Ovarian Masses and Their Differential Diagnosis
1. Clinical Hook A 53-year-old woman was referred to the radiology department because of left lower abdominal pain. Contrast-enhanced CT of the abdomen and pelvis revealed a heterogeneous, relatively hyperattenuating mass measuring approximately 3–4 cm in the region of the left ovary. Small foci of calcification were scattered throughout the lesion. Importantly, there was no convincing evidence of a macroscopic fat component. Transvaginal ultrasound revealed an even more intriguing appearance. The echogenic portions of the lesion produced prominent posterior acoustic shadowing, while color Doppler imaging demonstrated little to no internal vascularity. This combination of findings immediately brings another familiar diagnosis to mind for most radiologists: Mature cystic teratoma. However, this is not the point at which the interpretation should end. Calcification and marked acoustic shadowing are well-recognized imaging features of mature cystic terat...