The intracranial complications of otitic and paranasal sinus disease are trying both to the otolaryngologist and to the neurologist. Localized and generalized meningitis, cerebral and cerebellar abscesses, sinus thrombosis and involvements of the facial, abducens and fifth nerves have been familiar for many years, and the Gradenigo syndrome became known as an entity in 1903.1 Knowledge regarding the routes of invasion of the endocranium has been enriched by the investigations of Eagleton and others, but a great deal remains unknown about this important subject. In recent years there has come into prominence the involvement of the petrous tip, which presents interesting neurologic symptoms, and a study of this process helps in elucidating another route by which the central nervous system becomes involved. This subject has received a great deal of attention in otolaryngologic literature but little or no comment from neurologists. Having had trying experiences in cases of petrositis,
YASKIN JC, KORNBLUM K. NEUROLOGIC ASPECTS OF PETROSITIS. Arch NeurPsych. 1937;37(2):307–333. doi:https://doi.org/10.1001/archneurpsyc.1937.02260140093005
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