dysphagia or aspiration. medical diagnosis

achalasia acid aspiration cancer cross diagnosis digestive disease dysphagia dystrophy eosinophils epiglottis epiglottitis esophageal esophagectomy esophagus exam gastroesophageal gastrointestinal head healthy heartburn inflammation inhalation medical mouth muscular nasopharynx oesophageal oropharyngeal palate people person poster problem reflux section soft stricture tract treatment unhealthy vector