[Mucoepidermoid tumors in the bronchi. About three cases (author's transl)].

The little frequent mucoepidermoid tumors in the bronchi can be distinguished by their histological characteristics associating epidermoid and mucilage-like cells identified through alcian blue and PAS colour agents. Although these tumors are normally considered as "benign", some of them may have a capacity to develop in very malign way. We enclose three new findings which all developped unfavorably in a short period.