Glomus jugulotympanicum

Case contributed by Assoc Prof Frank Gaillard
CT

A single axial CT bone image through the temporal bones demonstrates a mass arising from the jugular bulb region and extending into the middle ear over the cochlear promontory. The bony margins are irregular and spiculated. 

MRI

Single axial and coronal images demonstrate a lobulated enhancing (confirmed on T1C- not shown) mass in the left temporal bone centered on the jugular foramen. 

DSA (angiography)

Left external carotid artery injection demonstrates a high vascular blush consistent with a glomus jugulotympanicum paraganglioma.

Case Discussion

Features on CT, MRI and DSA and consistent are those of a glomus jugulotympanicum paraganglioma. Unfortunately, follow-up and/or histological confirmation are not available. 

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Case information

rID: 7933
Published: 24th Dec 2009
Last edited: 14th Aug 2019
System: Head & Neck
Inclusion in quiz mode: Included