Fig. 8
From: MR imaging of ovarian masses: classification and differential diagnosis
Struma ovarii in a 32-year-old woman. (a) Axial T2-weighted, (b) coronal T2-weighted and (c) axial fat-suppressed T1-weighted images show a predominantly solid mass (white arrows) with multiple cystic spaces of variable signal intensity, some of which show high signal intensity on T1-weighted image (white arrowhead). (d) Axial contrast-enhanced fat-suppressed T1-weighted image demonstrates enhancement of the mass (white arrow)