[Pulmonary actinomycosis. Two cases].

We report two cases of pulmonary actinomycosis in two young men. These observations are an opportunity to review the usual difficulties of diagnosis and the clinical, radiological and therapeutic characteristics in patients with this rare disease. Pulmonary actinomycosis often appears in a debilitated patient with significant disease of the teeth and gingival margins. High-dose penicillin G which is the standard treatment generally provides cure.