患者信息:
2 岁, 男性
检查指征:
Left-sided conductive hearing loss
影像所见
- Rounded soft tissue structure measuring up to 3 mm in the upper aspect of the left mesotympanum abutting the handle of the malleus without osseous erosions
- Otherwise normal appearance of both temporal bones
- Bilateral cochlear clefts (left, right), incidental developmental variants
诊断
Congenital cholesteatoma
关键影像特征
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鉴别诊断
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要点
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讨论