Peer-reviewed veterinary case report
MRI shows middle ear cholesteatoma in 8-year-old retriever dog
By Harran, Nathaniel X et al.·Published in Journal of the American Animal Hospital Association·2012·Diagnostic Imaging Department, United Kingdom·View original on PubMed →
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Original publication title: MRI findings of a middle ear cholesteatoma in a dog.
- Species:
- dog
Plain-English summary
An 8-year-old flat-coated retriever was brought to the vet because it was in pain when opening its jaw. The vet found a ruptured eardrum and abnormal tissue in the middle ear. An MRI showed an enlarged ear structure filled with material similar to brain tissue, which helped the vet plan for surgery. After the surgery, a biopsy confirmed the diagnosis of a middle ear cholesteatoma (a type of growth in the ear). The MRI was helpful in diagnosing the issue and planning the treatment.
People also search for: dog ear pain · flat-coated retriever ear infection · middle ear cholesteatoma treatment
Abstract
This article describes the MRI features of a middle ear cholesteatoma in an 8 yr old flat-coated retriever. Physical examination revealed pain on opening the jaw, and otoscopic examination showed tympanic membrane rupture associated with hyperplastic tissue at the entrance of the middle ear. Standard MRI sequences allowed for the identification of a severely expanded bulla containing material that was isointense to brain tissue on T1-weighted images and of mixed intensity on T2-weighted and fluid-attenuated inversion recovery sequences. No postcontrast enhancement of the content was present, but the lining of the bulla was partially enhanced. The images allowed evaluation of the surgical margins and the secondary changes due to the expansion of the mass. Surgery was performed and histopathology confirmed the presumptive diagnosis of cholesteatoma. In the present case, MRI appeared to serve as a good alternative to computed tomography for the diagnosis of cholesteatoma.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/22843826/