[Primary pulmonary hypertension in human immunodeficiency virus infection. Study of 9 cases amd review of the literature].

Purpose: In medical literature, primary pulmonary hypertension occurs in 0.5% of human immunodeficiency virus (HIV)-infected patients, irrespective of the stage of the HIV disease, and is more frequent in drug users. Plexogenic arteriopathy is the most frequent histological lesion.