Proptosis Secondary to Extracranial Ethmoidal Meningioma: A Case Report.

ABSTRACT

Meningiomas of sinonasal tract are rare entities. A case of primary extracranial meningioma of the right ethmoid sinus is reported. A 55-year-old female patient presented to the Department of ENT with symptoms of visual disturbance and swelling of right eye since 6 months, progressive nasal obstruction on the right side since 3 months with few episodes of epistaxis. Clinical examination showed a solid mass occupying right nasal cavity. Imaging studies showed a well-defined mass lesion with central cystic and sclerotic margins, in the region of right ethmoid sinus, causing mass effect on surrounding structures and displacing the medial rectus muscle with alteration of course of the optic nerve. Transnasal endoscopic removal of the mass was done in-toto, and histopathological studies including immunohistochemistry proved it to be a psammomatous meningioma.