decreased cochlear VIII nucleus size csmith reduced size of two paired brainstem nuclei, the dorsal cochlear nucleus and the ventral cochlear nucleus, that lie dorsal and ventral, respectively, to the inferior cerebellar peduncle at the rostral pole of the medulla; the cochlear nuclei receive input from the cochlear nerve and send projections to the inferior colliculus, the medial geniculate, and other forebrain structures MPheno.ontology decreased cochlear nucleus size reduced cochlear VIII nucleus size 2013-12-04T22:39:39Z MP:0012486 reduced cochlear nucleus size abnormal cochlear VIII nucleus morphology