CTICasesNocardia Pneumonia
Imaging findings
Chest radiographs and CT in a patient with chronic lymphocytic leukemia (CLL) reveal a dense, mass-like lobar consolidation in the right middle and lower lobes. Biopsy and culture confirm infection with Nocardia.
Key takeaways
Immunocompromised patients, including those with chronic lymphocytic leukemia, are highly susceptible to opportunistic bacterial infections such as Nocardia. Because Nocardia pneumonia can present as an indolent, subacute, mass-like lung consolidation without acute systemic symptoms, it can easily be mistaken for lung cancer or mucinous adenocarcinoma.
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