Dysphagia and Odynophagia
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- Oropharyngeal dysphagia consists of difficulty in transferring food from the mouth to the esophagus, often associated with nasopharyngeal regurgitation and aspiration. Typical causes include neuromuscular or structural disorders involving the pharynx and proximal esophagus (Gastroenterology 1999;116:452 [PMID:9922327]).
- Esophageal dysphagia is the sensation of impairment in passage of food down the tubular esophagus. Potential etiologies include obstructive processes (such as webs, rings, neoplasia) or esophageal motor disorders (Gastroenterology 1999;117:233 [PMID:10381933]).
- Odynophagia is pain on swallowing food and fluids and may indicate the presence of esophagitis, particularly infectious esophagitis or pill esophagitis.