Atlas of Gastroenterological Endoscopy
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Papillary thermal lesion after sphincterotomy
thermal lesion After sphincterotomy a white starshaped structure is seen on the roof of the papilla. In case of a location of the duodenoscope difficult to maintain, the papillotoma may be advanced far too horizontal to the papillary roof. This entails a thermal trauma to the adjacent tissue. In this case there is no direct consequence. If the trauma comprises the walls of the biliary tract above the papilla, perforation into the retroperitoneum occurs.