Primary carcinoma of the trachea is a rare lesion; only 147 cases had been reported in the literature up to June 1936. This lesion forms 34 per cent of the primary tracheal tumors reported. The incidence of primary tracheal carcinoma in series of autopsies varies from zero to 1.4 per cent. The latter percentage was reported by Fraenkel.1 Many hospitals have not noted a single lesion of this type in thousands of autopsies. Culp2 reported that a personal survey yielded no primary carcinoma of the trachea observed in 15,000 autopsies at the Johns Hopkins Hospital; none in 7,000 autopsies at the Baltimore City Hospitals and none in 3,900 autopsies at the New Haven Hospital. He reported 2 cases; in 1 the lesion was the only primary tracheal carcinoma seen in 9,000 autopsies at the Pathologic Institute of McGill University, and in the other it was the only one noted in
MILLER I. PRIMARY CARCINOMA OF THE TRACHEA. Arch Otolaryngol. 1940;31(4):675–679. doi:10.1001/archotol.1940.00660010680010
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