Fig. 1. Cerebral fat embolism in a 16-yr-old male following orthopedic surgery. Initial magnetic resonance imaging (transverse scans) 10 h after surgery. Spotty areas of high signal intensity were detected in both thalami, in the head of the right caudate nucleus (arrows). (A ) T2-weighted scan; (C ) diffusion-weighted scan; and in the body of the left caudate nucleus (long arrows), (B ) T2-weighted scan; (D ) Diffusion-weighted scan.