Choristoma of Internal Auditory Canal: Literature Review
Choristomas of the internal auditory canal are extremely rare tumors. Due to their rarity and lack of specific clinical and radiological signs, it is usually misdiagnosed as vestibular schwannomas. The only method of differential diagnosis of choristoma and schwannoma is pathohistological examination of the resected tumor. Pathohistological examination of the tumor shows nerve fibers, smooth muscle tissue and a small amount of adipose tissue. The tumor involves the cochleovestibular and facial nerves in pathological process and is usually intimately soldered to them, which is a serious problem for the surgeon. That is why there is no consensus on the tactics of treatment of this category of patients.