This page was last updated: September 17, 2014
Pictures and Imaging of Mastoid Osteoma
Left Mastoid OsteomaThis patient presented with a slowly growing painless hard mass of the mastoid bone.
Axial CT scan of the Temporal Bones showing 
a Left Mastoid Osteoma
Surgical Picture Mastoid OsteomaThe osteoma was exposed through a post-auricular incision and the periosteum was also  incised and elevated.
Surgical Picture Mastoid OsteomaThe osteoma was removed with the drill and the mastoid surface smoothed down.  Note the yellow discoloration ring at the site of the excised osteoma.
In 1887, Adam Politzer, was the first to describe mastoid osteoma. Since then, isolated cases have appeared in the literature.

Osteomas of the temporal bone occur in young individuals and those of the mastoid process are more common in females. Mastoid osteoma is usually single and grows from the outer table of the mastoid cortex producing an external swelling.

Temporal bone osteomas are rare before puberty. They are usually asymptomatic. slow growing and are detected as incidental radiological opacities.

Clinically, mastoid osteoma is a benign tumor of bone. Other neoplasms of the mastoid region, such as osteosarcoma and osteoblastic metastasis, should be considered in the differential diagnosis.


Bechara Y. Ghorayeb, MD
Otolaryngology-Head & Neck Surgery
1140 Business Center Drive, Suite 560.  Houston, Texas 77043
Phone: (713) 464 2614