Snapshot A 73-year-old female is being seen at the emergency department after having recurrent coughing spells and regurgitation following meal. Her husband reports that the symptoms have been occurring over a year and has recently gotten worse. She denies any fever, chest pain, dyspnea, or abdominal pain but endorses a 10-lb. weight loss over the past 3 months. A medical history is significant for hypertension that is controlled with lisinopril. A physical examination demonstrates a palpable, fluctuant neck mass on physical examination and halitosis. Introduction Clinical definition login to view 2 more bullets Epidemiology Incidence login to view 1 more bullet Demographics login to view 2 more bullets Location login to view 1 more bullet ETIOLOGY Pathogenesis login to view 4 more bullets Presentation Symptoms login to view 5 more bullets Physical exam login to view 1 more bullet Imaging Barium swallow login to view 2 more bullets Transcutaneous ultrasound login to view 2 more bullets Esophageal manometry login to view 2 more bullets Studies Diagnostic testing login to view 2 more bullets Differential Achalasia login to view 2 more bullets Diffuse esophageal spasm login to view 2 more bullets Complications Aspiration pneumonia Squamous cell carcinoma of the diverticulum login to view 1 more bullet Ulceration and bleeding Increased risk of iatrogenic perforation login to view 1 more bullet