[Eosinophilic oesophagitis: a frequently missed cause of dysphagia].

Oesophageal dysphagia is the subjective feeling that there is a problem with the passage of solids or liquids through the oesophagus. The differential diagnosis of dysphagia is long and can be divided into mechanical and motility disorders. Dysphagia is an alarming symptom which requires short-term endoscopic evaluation. An emerging cause of dysphagia is eosinophilic oesophagitis. The typical eosinophilic oesophagitis patient is a young adult man, often with an atopic constitution, who has intermittent symptoms of dysphagia. The diagnosis of 'eosinophilic oesophagitis' is based on characteristic histological findings in the oesophagus, seen in a fitting clinical context. Best evidence for the effects of treatment of eosinophilic oesophagitis is available for topical glucocorticoids.