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[Primary carcinoma of the trachea. Report of 2 cases].

Tumours of the trachea remain relatively rare, the incidence of tracheal carcinomata is less than 0.1 per cent. Tumours of the larynx and lungs are, respectively, 75 and 180 times more frequent than malignant lesions of windpipe. Two patients with primary tracheal tumours were evaluated. The present study was undertaken in order to describe and analyse the most pertinent clinical and pathologic features of tracheal carcinomas as they relate to treatment and prognosis.