Dysphagia and substernal pain in a 62-year-old man.
D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D003680:Deglutition Disorders / Q000209:etiology*; D004938:Esophageal Neoplasms / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged