Duodenal polyposis, a rare manifestation of gastrointestinal portal hypertension.

Portal hypertension can affect the entire gastrointestinal tract, including the duodenum. Portal hypertensive duodenopathy may occur relatively rare in patients with portal hypertension secondary to cirrhosis or extrahepatic portal venous obstruction. We report the case of a 63-years-old female patient with cirrhosis who underwent an esophagogastroduodenoscopy. Multiple small duodenal polyps (2-3 mm) were found. The histopathologic examination of the duodenal biopsy specimen revealed a polypoid duodenal mucosa, with preserved villous architecture, with focal gastric foveolar metaplasia and numerous ectatic capillaries in lamina propria. The polypoid lesions found in the duodenum are a consequence of portal hypertension. The presence of one or several polyps in the duodenum of a patient with portal hypertension, with specific histological findings (dilated mucosal capillaries, no dysplasia) is diagnostic of duodenal polyp/polyposis in the context of portal hypertension.