A 62-year-old man with a 3-year history of GERD managed with omeprazole presents with progressive dysphagia to solids, regurgitation of undigested food, and halitosis. Vital signs show BP 138/82, HR 88, RR 16, temp 37.2°C. Physical examination reveals a soft, compressible left neck mass; swallowing improves when he applies manual pressure to it. Chest X-ray shows no aspiration pneumonia. Which of the following is the most likely diagnosis?

1. A)Diffuse esophageal spasm
2. B)Boerhaave syndrome
3. C)Esophageal adenocarcinoma
4. D)Achalasia
5. E)Zenker diverticulumGABARITO