Osteoma / Exostosis of External Auditory Canal
This page was last updated on: September 17, 2014
BECHARA Y. GHORAYEB, MD
OTOLARYNGOLOGY HEAD & NECK SURGERY
Memorial Hermann Professional Building
1140 Business Center Drive, Suite 560
Houston, Texas 77043
Telephone: (713) 464 2614
Picture of osteoma of the left external auditory canal. (Surgeon's view.)
Osteomas are sometimes referred to as exostoses of the ear canal. They occur in two forms: 1) single cancellous osteomas or 2) multiple compact osteomas.
They are slow growing and never become malignant. They are three times more common in males than in females and are often bilateral.
The etiology is unknown, however, some researchers ascribe this condition to swimming in cold water.
Surgical excision is indicated when osteomas impede the natural outward migration of earwax, thus causing wax impaction and hearing loss.