title: [Three cases of primary tracheal carcinoma].
mesh_terms: D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging* / Q000628:therapy; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014134:Tracheal Neoplasms / Q000000981:diagnostic imaging* / Q000628:therapy