대한이비인후과학회지

Tuberculous petrositis is a very rare disease. It is thought to be developed by a spread of tuberculous infection from the middle ear or pneumatized air cells of mastoid. We report a patient with tuberculous petrositis who complained persistent headache after previous tympanomastoid surgery. The classic symptoms of petrositis (Gradenigo's syndrome) were absent, but the diagnosis of petrositis was made with CT, MRI and Ga-67 citrate scan. Revision surgery including infracochlear drainage of the petrous apex was performed, and the pathologic report revealed a tuberculous infection.