Problem:
An older adult patient with a long history of tobacco and alcohol use presents with progressive dysphagia, unintentional weight loss, and a history of heartburn. A barium swallow shows irregular narrowing and mucosal irregularities in the lower esophagus. What is the most likely cause of the patient's progressive dysphagia? Group of answer choices Esophageal narrowing Gastroesophageal reflux disease Infectious esophagitis Eosinophilic esophagitis