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Resident's Page: Imaging
September 1998

Imaging Quiz Case 2

Author Affiliations


Arch Otolaryngol Head Neck Surg. 1998;124(9):1049. doi:10.1001/archotol.124.9.1046

The computed tomographic scans revealed a high right jugular bulb with a dehiscence that included and extended lateral to the tympanic membrane annulus (Figure 1 and Figure 2). This dehiscence was seen on multiple, sequential sections. The jugular bulb was entered during elevation of a posterior endaural flap owing to the lack of bony floor lateral to the annulus in the medial portion of the external auditory canal.

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