急性感音性難聴を示した海綿状血管腫の一症例

概要

論文の詳細を見る
The origin of vertigo is difficult to identify since a similar symptom occurs in either central or peripheral impairment. An initial evaluation of the patients clinical history, as well as his clinical manifestations are important for correct diagnosis. Final diagnosis typically depends on conventional imaging techniques, such as CT and MRI. Here, we describe a patients whose functional examination was quite helpful to identify the lesion. The patient was case a 44-year-old man with cavernous hemangio-ma in the brainstem presenting acute hearing loss with vertigo. Initially he was diagnosed as having peripheral vertigo by neurological examinations together with CT images. Later a rare cavernous hemangioma was identified by head MRI. In the process of diagnosis, the result of auditory brainstem response (ABR) strongly suggested brainstem impairment. This case reveals that conventional imaging procedures, such as CT, are inadequate for diagnosis, whereas functional exams, such as the auditory brain stem response (ABR), are quite helpful for clinical evaluation. ABR can work as a screening examination for patients with vertigo to rule out brainstem lesion even in patients with normal hearing.
日本めまい平衡医学会の論文
2005-04-01