Abstract
Purpose: Otomastoiditis is a rare but important manifestation of tuberculosis and is well recognizable when information on its clinical course is considered in connection with the radiographic changes. Material and Method: A patient with a clinical history of chronic otorrhea, resistant to conventional therapy but without dramatic symptoms, was referred for CT examination. Results: CT revealed widespread soft tissue densities in the tympanic cavity and in the mastoid process, with bone erosions in the latter. Surgery and bacteriology confirmed the diagnosis of Mycobacterium tuberculosis infection. Conclusion: CT evidence of widespread bone destruction without clinical signs of aggressive infection should suggest the diagnosis of a mycobacterial process. Early treatment is essential in order to avoid propagation of the disease and lasting loss of function.
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