3 Months in Medicine / Internal Medicine — 59yo Man | Gastroenterology | SMLE Q#1359

SMLE Question #1359

Medicine / Internal Medicine Gastroenterology
Last updated: February 2026
A 59-year-old man has progressive dysphagia and unintentional weight loss for 3 months. Upper endoscopy shows an esophageal mass; histopathology confirms squamous cell carcinoma. Which of the following is a major risk factor for esophageal squamous cell carcinoma?

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