Fibro-osseous and respiratory epithelial hamartoma of the fronto-ethmoid region.

A 31-year-old lady presented to the otorhinolaryngology clinic complaining of right exophtalmus. Imaging studies revealed a right frontal sinus mass, suggestive of a mucocele, and fronto-ethmoidal ground glass opacification. In the operating room, the frontal sinuses were exposed through an osteoplastic flap, and connected to the nasal cavity through a Lothrop-like drainage pathway. The pathologic analysis revealed a frontal sinus mucocele and fibro-osseous and respiratory epithelial hamartoma of the fronto-ethmoid region. In this case report, this rare pathology is discussed, in addition to a thorough elaboration upon the surgical options as dictated by the anatomic complexity of the region.