Osteoma: Presenting as a Retroauricular Mass / 대한이비인후과학회지

ABSTRACT

Osteomas in the head and neck regions are uncommon benign lesions and usually found in the front ethmoid area. Temporal bone osteoma is an extremely rare entity. When it is located in the temporal bone, it may cause various symptoms such as hearing loss, tinnitus, vertigo, facial palsy and cosmetic deformities such as auricular protrusion and external mass. We report, with a short review of the relative literature, a case of large osteoma that originated from a squamomastoid portion of the temporal bone in a female patient of 20 years old.