zenker

related: GI, dysphagia
symptoms
- regurgitation undigested food
- halitosis
- aspiration
- gurgling in chest
diagnosis
- initial test: barium esophagram to identify diverticulum
treatment: reserved for symptomatic patients
- endoscopic diverticulectomy

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Dysphagia
dysphagia
- related: GI
- achalasia and pseudoachalasia
- zenker
Tests
- barium esophagram: zenker
- esophageal manometry: motility disorder like achalasia
  - usually dysphagia to liquids or both solids and liquids
- ambulatory pH testing and impedance-pH testing: acid exposure
  - acid, nonacid reflux for GERD