In a patient with unspecific abdominal discomfort, a duodenal polyp appears, which surprisingly empties after biopsy. A whitish secretion from the "polyp" appears, which thereby collapses. The resulting histology reveals an inconspicuous duodenal mucosa.

• Eosinophilic Oesophagitis
• Oesophagus - Papilloma
• GIST
• Perforated Ulcus Ventriculi
• AML Stomach
• Duodenal Adenoma
• Small Intestine Lymphangioma
• Choledocho - Bulbostomy
• IPMN
• Uncertain Duodenal Polyp