[Carcinosarcoma of the lung: a report of 3 cases and a review of the literature].

Three cases of lung carcinosarcoma are reported. This kind of tumour accounts for 0.1 percent in lung tumours. 53 cases in the literatures were reviewed. Authors analysed the histology, morphology, diagnosis, treatment and diagnosis. The carcinosarcoma is single or multiple symptoms of the carcinoma in the bronchi appear early, but it is difficult to diagnose it early. Final diagnosis depends on the biopsies.