[Study of two observations of bronchial muco-epidermoid tumour (author's transl)].

This study deals two cases of operated bronchial muco-epidermoid tumours. They were localized in both cases in the segmentary bronchi (apical ones of lower lobes), one mostly endo-bronchial, the other with an endo-exobronchial development. The histological diagnosis was done after the thorough analysis of the surgical specimen revealed the association of two cell types characteristic of these tumours: mucus producing cells and epidermoid cells. Evolution differs in both cases, as the first observation revealed the existence of a potentially benign tumour, while in the second it behaved like a truly malignant one with local recurrence, regional invasion and distant metastases.