TY - JOUR T1 - Choristomas of the seventh and eighth cranial nerves. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 327 LP - 329 VL - 18 IS - 2 AU - M M Smith AU - J E Thompson AU - D Thomas AU - M Castillo AU - D Carrier AU - S K Mukherji AU - D Gilliam Y1 - 1997/02/01 UR - http://www.ajnr.org/content/18/2/327.abstract N2 - Choristomas, masses of normal tissues in aberrant locations, contain smooth muscle fibers and fibrous tissues. We describe the MR imaging features of two choristomas located in the internal auditory canals and arising from the facial and vestibulocochlear nerves. Both lesions enhanced with contrast material. In one case, enhancement was seen in the geniculate ganglion and greater superficial petrosal nerve. In the other, a medial component enhanced less than the lateral component did. ER -