R. NICKBRYANMDS. JAMESZINREICHMD
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.
Imaging Quiz Case 2. Arch Otolaryngol Head Neck Surg. 1998;124(9):1049. doi:10.1001/archotol.124.9.1046
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