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A rare cause of conductive hearing loss: High lateralized jugular bulb with bony dehiscence

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June 14, 2016
by James G. Barr, MRCS(ENT), BSc, BM; Pranay K. Singh, MD, FRCS, (ORL-HNS)

Abstract

We present a rare case of pediatric conductive hearing loss due to a high lateralized jugular bulb. An 8-year-old boy with a right-sided conductive hearing loss of 40 dB was found to have a pink bulge toward the inferior part of the right eardrum. Computed tomography showed a high, lateralized right jugular bulb that had a superolaterally pointing diverticulum that bulged into the lower mesotympanum and posterior external auditory meatus. It was explained to the child's parents that it is important never to put any sharp objects into the ears because of the risk of injury to the jugular vein. A high, lateralized jugular bulb with a diverticulum is a rare anatomic abnormality. Correct diagnosis of this abnormality is important so that inappropriate intervention does not occur.

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