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Updated: May 30, 2026

Microbiological Rapid On-Site Evaluation for Pulmonary Infectious Diseases
Published on: March 1, 2024
CT findings of pulmonary nocardiosis
Jeffrey P Kanne1, Donald R Yandow, Tan-Lucien H Mohammed
1Department of Radiology, University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, MC 3252, Madison, WI 53792-3252, USA. jkanne@uwhealth.org
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.
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