Disseminated Nocardia pseudobrasiliensis infection in a case of juvenile systemic lupus erythematosus on immunosuppressive therapy.

Nocardiosis is an uncommon infection that presents as a chronic, debilitating illness with radiographic manifestations simulating lung cancer or tuberculosis. Immunocompromised hosts may develop a fulminant disease resembling acute bacterial pneumonia or disseminated disease. We report a case of a juvenile lupus who developed disseminated Nocardia pseudobrasilienisis infection in form of necrotizing pneumonia, subcutaneous nodules and central nervous system (CNS) lesion in the right parietal lobe, following inadvertent hiking of steroids after a minor organ flare. This case was successfully treated with intravenous meropenem, amikacin, and oral cotrimoxazole therapy for 6 weeks which lead to resolution of pneumonia, and partial resolution of of the cutaneous and CNS lesion. As the patient was immunosuppressed, and had disseminated nocardiosis, we planned to put her on oral cotrimoxazole for the next 1 year.