Mature Cystic Teratoma Hiding in the Retroperitoneum of an Adult

Figure 1

CT scan of the abdomen (coronal view) demonstrating a well-circumscribed cystic mass, with solid components (asterisk), occupying the entire right upper quadrant of the abdomen. The mass measures 19.0 × 19.7 × 13.8 cm in its maximal and displaces the right kidney (K) inferiorly and liver (L) anteromedially.