Cholesteatoma

Case contributed by Dr Erik Ranschaert

Presentation

Hearing loss on the left side.

CT

CT petrous bone

Soft tissue mass in the left middle ear surrounding and partially eroding the ossicles and extending into the antrum. Obliteration of mastoid cells. 

MRI

T2 high intensity structured in the left middle ear and mastoid air cells.
Diffusion-weighted (b-value = 1000) acquisition reveals restricted diffusion in the left middle ear and a second focus in the left antrum.
Fusion image of the Coronal T2 and DWI images allows a more precise detail of the anatomic position of the foci with restricted diffusion.

Case Discussion

Diffusion MRI (non-EPI DWI or TSE DWI) allows to identify with high accuracy the presence of a cholesteatoma (acquired or recurrent). 

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Case information

rID: 10742
Published: 15th Sep 2010
Last edited: 9th Jun 2019
System: Head & Neck
Inclusion in quiz mode: Included

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