[Computed tomographic diagnosis of paraganglioma of the base of the skull].

On the basis of examination of 30 patients with the diagnosis of paragangliomas of the base of the skull the following main computed tomographic signs of this group of tumors were revealed: destruction of bone structures of the base of the posterior and middle cranial fossae, erosion and widening of the jugular foramen; diminished pneumatization of the air cells of the mastoid process; extracranial simultaneous with intracranial spreading of the tumor. A classification of paragangliomas is suggested.