Lipoma of the internal auditory canal (IAC) is an extremely rare lesion and little described in the literature. They are usually asymptomatic and found incidentally.
Neuroimaging represents an important tool for diagnosis, since it evaluates IAC and cerebellar angle. Symptomatic cases where there is compression of nerve structures, complete resection can be attempted but there is a risk of severe neurological sequelae, especially in large lesions. The most described conduct is the follow-up of the lesion through repeated imaging examinations in order to detect lesion growth.
This case was kindly provided by Dr Rodrigo Dias Duarte.