Radiopaedia 2021 UPDATE Conference-only registration is now closed. Late registration for All-Access Pass and Free Country Pass holders ends this Friday - LEARN MORE

Glomus tympanicum paraganglioma

Case contributed by Dr Andrew Dixon


Hearing loss.

Patient Data

Age: 65 years
Gender: Male

Soft-tissue density lesion within the right tympanic cavity and hypotympanum centered just anterior to the cochlear promontory. The lesion contacts the handle of the malleus. No bony erosion.  

Annotated image

Left middle ear cavity glomus tympanicum paraganglioma (red arrow) located just anterior to the cochlear promontory (blue arrow). 

Case Discussion

Right-sided middle ear soft-tissue lesion near the cochlear promontory. This lesion enhanced on MRI (not shown) consistent with a glomus tympanicum paraganglioma, which is the most common tumor of the middle ear cavity. These tumors can be asymptomatic, produce conductive hearing loss through contact with the ossicles (as in this case), or result in pulsatile tinnitus. This mass was observed to be stable over many years without treatment.

PlayAdd to Share

Case information

rID: 42328
Published: 15th Jan 2016
Last edited: 9th Dec 2019
System: Head & Neck
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.