Presentation
Incidental findings during CT imaging for exclusion of sinusitis as the cause of chronic headaches.
Patient Data
There is a ground-glass osseous lesion at the level of the right frontal sinus recess and ostium. The lesion attenuates the frontal recess, which however remains patent with a clear right frontal sinus additionally.
There is a deviated and asymmetric nasal septum and a small mucous retention cyst within the left sphenoid sinus. The paranasal sinuses are otherwise clear.
Image courtesy of Dr. VKS Bhagwandas.
Case Discussion
Features suggestive of an eccentric focal fibrous dysplasia at the level of the right frontal sinus ostium and recess. There is no obstruction to the right frontal sinus; however, this may yet develop should the lesion increase in size. The rest of the cranium and facial bones are unaffected.
Except for the septal and left sphenoid sinus findings, the paranasal sinuses are clear and do not demonstrate a cause of headaches in this patient.
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