Pontine hypoplasia in a child with sensorineural deafness
| Autor: | Toshiyuki Yamamoto, Kenzo Takeshita, Yukinori Maeoka, Kyoichi Ohtani |
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| Rok vydání: | 1997 |
| Předmět: |
genetic structures
Hearing loss Neural Conduction Deafness Central nervous system disease Developmental Neuroscience Evoked Potentials Somatosensory Pons Evoked Potentials Auditory Brain Stem otorhinolaryngologic diseases Tegmentum medicine Humans Corneal reflex Blinking medicine.diagnostic_test business.industry Electroencephalography Magnetic resonance imaging General Medicine Anatomy medicine.disease Magnetic Resonance Imaging Hypoplasia Child Preschool Pediatrics Perinatology and Child Health Female Neurology (clinical) Brainstem medicine.symptom business |
| Zdroj: | Brain and Development. 19:436-439 |
| ISSN: | 0387-7604 |
| DOI: | 10.1016/s0387-7604(97)00056-9 |
| Popis: | A 2-year-old girl with bilateral sensorineural deafness showed pontine hypoplasia as well as a bulging contour of the pontine tegmentum on magnetic resonance imaging (MRI). There were no bilateral responses of brainstem auditory-evoked potentials (BAEPs). The absent late components of blink reflex (BR) indicated brainstem dysfunction. Chromosomal abnormalities and neurodegenerative or neurometabolic disorders, which might have been the cause of the pontine hypoplasia, were ruled out. The authors describe a rare case with pontine hypoplasia combined with sensorineural deafness and absent blink reflex and suggest that the brainstem in this child may become involved in the early gestation period. |
| Databáze: | OpenAIRE |
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