Summary
A neurinoma is a benign new formation of Schwann cells. The most common type of neurinoma is the acoustic neurinoma. This type of neurinoma causes progressive hearing loss (hypacusis), ringing in the ears and balance disorders.
As the size of the tumor increases, further cranial nerves fail, leading to facial paresis and numbness in the face. With further increase in size, the cerebellum and brain stem can also be affected, leading to ataxia in particular. Diagnostically important is the protein increase in the cerebrospinal fluid. The therapy of choice is the complete surgical removal of the tumor.
