CT findings of pulmonary nocardiosis.

ABSTRACT

OBJECTIVE: Nocardiosis is an opportunistic infection that primarily affects the lungs. Most infected patients have deficits in cell-mediated immunity such as those with AIDS, transplant recipients, and those receiving corticosteroid therapy. We review the various CT appearances of pulmonary nocardiosis and discuss the differential diagnosis. CONCLUSION: Common CT findings include lung consolidation and nodules and masses. Cavitation may occur. Chest wall involvement develops in a small number of patients.