High-riding jugular bulb presenting as conductive hearing loss

The superior border of the jugular bulb normally lies below the hypotympanum. However, in rare cases, the jugular bulb may extend upwards elevating the floor of the hypotympanum and presenting in the middle-ear space. We present a case of a child with a bone-covered jugular bulb that mimicked the ap...

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Bibliographic Details
Published in:International journal of pediatric otorhinolaryngology extra 2011-12, Vol.6 (4), p.235-237
Main Authors: Chennupati, Sri Kiran, Reddy, Nishant P., O’Reilly, Robert C.
Format: Article
Language:English
Subjects:
Conductive hearing loss
High-riding jugular bulb
Temporal bone
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Summary:The superior border of the jugular bulb normally lies below the hypotympanum. However, in rare cases, the jugular bulb may extend upwards elevating the floor of the hypotympanum and presenting in the middle-ear space. We present a case of a child with a bone-covered jugular bulb that mimicked the appearance of a mass impinging on the round window niche causing conductive hearing loss. In addition to a cholesteatoma or neoplasm, a bone-covered jugular bulb should also be considered when formulating a differential diagnosis in patients with similar clinical and radiologic findings.
ISSN:1871-4048
1871-4048
DOI:10.1016/j.pedex.2010.10.005