The otoneurological symptoms in neurinomas of the gasserian ganglion and the root of the 5th nerve

: The papers covers the specific features of manifestations of the Gasserian ganglion and its root with emphasis on the otoneurological findings of 70 patients with the diagnosis verified during surgery. According to the predominant extent of tumor growth, three groups of patients are identified: 1) those with a tumor located only in the middle cranial fossa (n = 23); 2) those with that in the cerebellopontine angle (n = 22); 3) those with its bulk in the middle cranial fossa, which extended to the posterior cranial fossa medially along the cranial clivus (n = 25). In addition to the local symptoms common to all three groups, otoneurological data typical of each group identified are analyzed thoroughly. The differential diagnostic criteria of neurinomas of the trigeminal nerve are presented.