Intracranial mucocele in pregnancy.

Intracranial mucocele is rare. They are slow-growing lesions and usually form as a result of an obstruction of the paranasal sinuses, particularly by osteoma, fibrosis, trauma, previous surgery or inflammation. The effect of pregnancy in the development of intracranial mucocele is unclear. We report a pregnant patient who was admitted to our clinic with severe headache and diplopia. A giant mucocele in the right frontal lobe was detected on magnetic resonance imaging. The patient underwent surgery with satisfactory outcome.