[Pulmonary mycoses and parasitosis].

Lungs can be the target of many fungal parasitic organisms. Some of them are specific to the lung (Pneumocystis); while others will migrate there in the course of their life cycle (Ascaris) or be caught in it (Paragonimus, Echinococcus). Sometimes, they also generate hypersensitivity reactions (fungi). In making a diagnosis one has to consider the present state of health or the disease history of the patient. A great number of parasites or mycetes are opportunist agents found in immuno-compromised patients. The epidemiological investigation giving details of a trip, even a long time ago, in a tropical region allows the suspicion of an imported parasitosis or an exotic mycosis. At present, we have on one hand, the mixing of populations, and on the other hand, many immuno-compromised situations which has given rise to a renewed interest in fungal and parasitic lung diseases.