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[Diagnostic procedures in esophageal diseases].

The algorithms for diagnosis of esophageal diseases largely depend on the patient's symptoms. The most important diagnostic procedure is flexible upper gastrointestinal endoscopy which allows inspection and assessment of the entire esophagus with the possibility to take biopsies for histological examination. Radiographic tests are indicated for special indications only. Finally, the role of functional tests (manometry, 24-hour pH-metry) and their indications are discussed.