MRI Findings of a Middle Ear Cholesteatoma in a Dog.

The article describes the case of a flat-coated retriever presenting with middle ear cholesteatoma. Otoscopic examination revealed tympanic membrane rupture linked to hyperplastic tissue at the entrance of the middle ear. Standard magnetic resonance imaging sequences enabled the identification of a severely expanded bulla containing material that was isointense to brain tissue on T1-weighted images and of mixed intensity of T2-weighted and fluid-attenuated inversion recovery sequences.