Brainstem and Cerebellar Involvement in Ramsay Hunt Syndrome

Figure 2

FLAIR (fluid-attenuated inversion recovery) images. (a) Focus of increased signal intensity noted at the level of the fourth ventricle involving the left CN VI (abducens) nucleus, left CN VII (acial) nucleus, and left middle cerebellar peduncle. (b) Focus of increased signal extends caudally to the level of the cerebellar vermis involving the middle cerebellar peduncle. (c) Further to the level of the cerebellar vermis with involvement of the medulla oblongata and left pyramid. (d) Terminating at the level of the cerebellar tonsils involving the left inferior cerebellar peduncle (restiform body).

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