Presentation
Left hearing loss.
Patient Data
Age: 30 years
Gender: Male
From the case:
Fibrous dysplasia - temporal bone
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Asymmetric expansion of the right petrous temporal bone, mainly along the petrous ridge, with a ground-glass appearance of the bone matrix. Otic capsule structures, internal acoustic canal, middle ear cleft, external ear canal and mastoid air cells appear unaffected.
Case Discussion
This is an incidental finding of monostotic fibrous dysplasia on a petrous temporal bone CT. Compared to a CT brain from a year ago, there was no change. Temporal bone fibrous dysplasia is rare and is increasingly being discovered, as in this case, incidentally on imaging studies.
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