患者背景:
10 歳, 女性
適応:
Right-sided sensorineural hearing loss
所見
- LEFT
- External and middle ear are normal in appearance
- The interscalar septum appears present between the middle and apical turns, but may be mildly deficient
- Mildly enlarged vestibular aqueduct, measuring approximately 1.2 mm in width at its midportion
- Bony uncovering of the superior semicircular canal at its apex
- RIGHT
- External and middle ear are normal in appearance
- Incomplete partitioning of the middle and apical turns of the cochlea
- Mildly dysmorphic, globular appearance of the vestibule
- Enlarged vestibular aqueduct, measuring approximately 2 mm in width at its midportion
- Bony uncovering of the superior semicircular canal at its apex
診断
Right cochlear incomplete partition type II (IP-II)
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鑑別診断
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臨床のポイント
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考察