February 1st 2002A 65-year-old man with a history of a "bleeding ulcer" 7 years earlier presents with complaints of progressive dysphagia for solids and liquids over the past 4 months. The patient states that he has had a 40-pound weight loss during this time, but denies any fevers, chills, abdominal pain, melena, or anorexia. He states that recently he cannot go to his favorite restaurant, as whenever he eats he experiences severe coughing fits. He also describes regurgitation of undigested materials soon after eating.