Deafness after Bilateral Midbrain Contusion: A Correlation of Magnetic Resonance Imaging with Auditory Brain Stem Evoked Responses

Autor:	Robert Laureno, Niranjan N. Jani, Carmen C. Brewer, Alexander S. Mark
Rok vydání:	1991
Předmět:	Inferior colliculus Inferior Colliculi medicine.diagnostic_test business.industry Hearing loss Magnetic resonance imaging Anatomy medicine.disease Head trauma Midbrain Closed head injury Reflex Medicine Surgery Neurology (clinical) medicine.symptom business
Zdroj:	Neurosurgery. 29:106-109
ISSN:	1524-4040 0148-396X
DOI:	10.1227/00006123-199107000-00018
Popis:	A 46-year-old woman became deaf after a closed head injury. When a computed tomographic scan failed to disclose the cause, conversion disorder was suspected. Magnetic resonance imaging, however, showed bilateral contusions of the inferior colliculi, providing objective evidence for an organic cause of hearing loss. Auditory brain stem evoked responses and stapedial reflexes also provided objective evidence of brain stem injury. This case illustrates the phenomenon of dorsal midbrain injury after head trauma. It indicates the sensitivity of magnetic resonance imaging for small focal lesions after head trauma, and it demonstrates some difficulties in the diagnosis of “hysterical” deafness. (Neurosurgery 29:106-109, 1991)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a89b194a6504d2c4b1b5c7836ae092f https://doi.org/10.1227/00006123-199107000-00018 Zobrazit plný text záznamu