Background. Pulmonary nocardiosis (PN) is an uncommon infection often seen in immunocompromised patients. Definitive diagnosis depends on identification of the organism by culture in a patient with a clinical presentation suggestive of PN. As Nocardia can grow slowly and other infections can present similarly in the immunocompromised patient, we sought to find the performance of respiratory sam...

Septic arthritis due to Nocardia sp. should be suspected when a patient with risk factors such as pneumoconiosis or diabetes mellitus develops joint symptoms, especially if the patient has had nocardiosis in other sites.

Chronic granulomatous disease (CGD) is an inherited disease of the phagocyte NADPH oxidase system that causes defective production of toxic oxygen metabolites, leading to impaired bacterial and fungal killing, and recurrent life threatening infections; mostly by catalase producing organisms. Nocardiosis in CGD is well described, however actinomycosis is rare. We describe a patient of CGD with a...