Fig. 5
Three-tesla MR images in a 61-year-old patient (same as in Fig. 2) with confirmed benign struma ovarii of the left ovary. An 8-cm left oval-shaped complex multiloculate lesion is seen on the T2-weighted (a), diffusion-weighted images with b = 1,200 mm/s2 (b) and T1 fat-saturated images (LAVA) pre-gadolinium (c) and post-gadolinium (d) within the left hemi-pelvis. The solid portion of the mixed solid and cystic lesion presents with the typical low signal intensity on the T2-weighted image (a) and intermediate signal intensity on the T1-weighted image (c) (arrows). d These solid components enhance markedly (arrow) which together with the multilobulate surface resemble a “lacy” pattern. b This lacy pattern in keeping with solid thyroid tissue is also obvious on the diffusion-weighted images (arrow)