abnormal sensory ganglion morphology abnormal cranial ganglia morphology abnormal cochlear ganglion morphology MP:0002855 MPheno.ontology abnormal Corti ganglion abnormal auditory ganglion abnormal cochlear ganglia morphology abnormal spiral ganglion of vestibulocochlear (VIII) nerve any structural anomaly of the group of nerve cell bodies that conveys auditory sensation from the organ of Corti to the hindbrain and resides on the cochlear part of the vestibulocochlear nerve (eighth cranial nerve) cranial ganglion VIII