Describe the typical appearance of Fibrous dysplasia.
Fibrous dysplasia can have a variable appearance. 'Ground glass' opacity is not infrequently seen however this is not always present.
No intracranial collection, acute haemorrhage or infarction identified. Normal grey white matter differentiation. The ventricles and basal cisterns are unremarkable for patient's age. No abnormal hyperdensity within the venous sinuses.
Expansion of the inferior right frontal bone with heterogeneous density and regions of ground glass internal matrix, likely represent Fibrous Dysplasia. This involves the orbital roof but there is no extension into the surrounding sphenoid, zygomatic or temporal bones.
The visualised paranasal sinuses and mastoid air cells are clear.