[Neurinoma of the descending loop of the hypoglossal nerve. Report of a case].

Neurinomata developed from extracranial portion of hypoglossal nerve are very scarce. We report one case of neurinoma originated in the descending branch of hypoglossal nerve and not having found after careful perusal of the literature of this subject another case we consider the ours as the first portraying this type of pathology and its localization.