Extracanalicular Osteoma of the Mastoid Region of Temporal Bone-A Rare Presentation.

ABSTRACT

Extracanalicular temporal bone Osteomas are rare slow growing benign bone tumors of lamellar bone.Osteomas are commonly found in fronto-ethmoid region. In the temporal bone, they mostly occur in canalicular portion (EAC), but are very rare in extracanalicular portion of temporal bone. They are mostly asymptomatic and treatment is required mostly for cosmetic reasons. We report here an isolated case of extracanicular osteoma of temporal bone due to its rarity in world literature and unusual site of presentation.