[Nocardiosis as the first opportunistic disease in a patient with missed HIV infection. Pathomorphism of presentation, clinical course, and evolution].

It is reported on the ground of the most updated literature evidences an infrequent case of multiple cavitating pulmonary infiltrates and a probable liver abscess caused by a Nocardia asteroides disseminated infection heralding a HIV-related profound immunodeficiency who remained missed and undiagnosed until the emerging of this severe opportunistic infection.