Acute mastoiditis with retroauricular abscess

Case contributed by Dr Ammar Haouimi


Painful left postauricular swelling with fever. A surgical drain was inserted and a CT was requested.

Patient Data

Age: 20 years
Gender: Male

Partial opacification of the right mastoid air cells with cortical destruction of the posterior mastoid wall in continuity with a retroauricular fluid collection containing air-bubbles with peripheral enhancement. No subdural empyema. The cerebral venous sinuses are patent. A surgical drain is noted within the collection.

Signs of a right chronic otitis media

Peripheral mucosal thickening of both maxillary sinuses with partial filling of the ethmoid air cells (chronic sinusitis).


Case Discussion

CT features consistent of an acute mastoiditis complicated by a retroauricular abscess.


Additional contributor: ZE. Boudiaf, MD CHU, Constantine

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Case information

rID: 69818
Published: 27th Jul 2019
Last edited: 14th Aug 2019
System: Head & Neck
Inclusion in quiz mode: Included
Institution: Aurès Medical Imaging Center - Batna Algeria

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