Fibrous dysplasia of the sphenoid sinus: headache relieved by surgical excision-a case report.

Fibrous dysplasia (FD) is an uncommon benign bone disorder of unknown etiology in which normal medullary bone is replaced by fibrotic and osseous tissue. FD of paranasal sinuses is usually secondary to extension from adjacent bones. It is rarely limited to the sinuses, let alone limited to the sphenoid sinus. Furthermore, the relationship between headache and FD of paranasal sinuses has not been well addressed. We report a case of a 55-year-old female with FD of sphenoid sinuses complaining of sever right-sided parietal headache. Her headache was significantly improved after surgical excision of FD.