Résumé : Involvement of the major airways in non-Hodgkin's lymphoma is usually described in advanced stages of the disease or at disease relapse. Primary endobronchial non-Hodgkin's lymphoma is rare. We report our experience with two distinct presentations of the disease, probably reflecting different pathways by which an endobronchial spread of non-Hodgkin's lymphoma occurs. The literature on primary non-Hodgkin's lymphoma of the tracheobronchial tree is reviewed. © 1988.