Fibrous dysplasia of skull base

Case contributed by Mohammad Taghi Niknejad
Diagnosis almost certain

Presentation

A 19-year-old female involved in a head-on collision.

Patient Data

Age: 19
Gender: Female

 CT scan shows expanding lesion in the skull base particularly clivus. Note typical ground-glass appearance.

Case Discussion

The findings of CT in a 19 Y/O patient are compatible with fibrous dysplasia.

Fibrous dysplasia involving the base of the skull may be detected as an incidental finding on imaging performed for an indication unrelated to the skull base.The most common appearance of fibrous dysplasia on CT is an expanded bone showing a ground-glass appearance and diagnosis of fibrous dysplasia on CT is usually straightforward.

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