ADC values derived from the diffusion sequence have significantly lower values in renal abscesses than in areas of nephritis.

Walker-Warburg syndrome (WWS) is a rare autosomal recessive disorder characterized by a triad of congenital muscular dystrophy, brain anomalies, and ocular abnormalities. The brain anomalies mainly include type II lissencephaly (cobblestone cortex), pontine and cerebellar hypogenesis, cerebral or cerebellar hypomyelination, cerebellar polymicrogyria with or without cysts, and variable callosal hypogenesis. Constructive interference in steady state (CISS) sequence, a heavily T 2 -weighted sequence, is ideal for demonstrating the presence of cerebellar cysts on magnetic resonance (MR) imaging. We report the complete imaging spectrum in a patient with WWS and emphasize the utility of CISS sequence in the imaging of cerebellar cysts.

The geniculate fossa is a small bony hiatus in the temporal bone and is situated at the junction of the labyrinthine and the tympanic segments of the intratemporal facial nerve canal. It houses important neural structures and is best visualized by a combination of HRCT and high-resolution MRI examination of the temporal bone. It is therefore imperative for imaging specialists to be familiar with the normal appearance of this structure on HRCT and MRI examinations of the temporal bone as subtle imaging findings involving the geniculate fossa can be indicators of a variety of abnormalities.