title: Carcinosarcoma vs. pseudosarcoma.
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology; D002296:Carcinosarcoma / Q000473:pathology*; D004938:Esophageal Neoplasms / Q000473:pathology*; D005350:Fibroma / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged