Fig. 6
Three-tesla MR images of a predominantly cystic struma ovarii (same patient as Fig. 2a). T2-weighted high-resolution image (a), unenhanced (b) and enhanced (c) T1 fat-saturated LAVA image and diffusion-weighted image b = 1,200 mm/s2 (d) at the same slice level show the multiloculate lesion centrally within the pelvis anterior to the uterus. a The cystic components of the struma present with high and low signal intensities on T2-weighted imaging. b The cystic areas with high signal intensity on T1 mimic a mucinous epithelial tumour. c Contrast-enhanced T1-weighted image illustrates a small solid component presenting with a lacy pattern of enhancement (arrow). A linear cystic area in keeping with thick gelatinous fluid demonstrates very low signal on T2-weighted (e) and on unenhanced T1-weighted imaging (f) (arrow)