Pulmonary nocardiosis.

Guadalupe Salta, Maria José Bouw, Teresa Tendeiro, Zélia Saraiva, Martins Reis, Manuel Mello e Castro, Ana Girão


Pulmonary nocardiosis is an opportunistic infection that manifests itself mostly in the context of decreased defences, due either to pre-existing pathology or to immunosuppressive therapy, and is often complicated by central nervous system involvement. The clinical and radiological picture is highly variable, requiring a broad spectrum of differential diagnosis, and leaving a decisive and difficult role to the laboratory. We present two cases that exemplify the clinical variability of this infection, the difficulty of the microbiological diagnosis in a routine laboratory, the problems of the antimicrobials' selection, and the importance of a long therapy course.

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