Die Szintigraphie mit 99mTc-in-vivo-markierten Erythrozyten

: Following resection of the head of the pancreas while preserving the duodenum a gastrointestinal haemorrhage was localised by red blood cells labeled in vivo with technetium-99m. The previously performed endoscopy and angiography were normal. The haemorrhage in the region of the pancreatico-jejunal anastomosis was confirmed intraoperatively. If intermittent bleedings are suspected, scintigraphy should be performed as a routine measure besides endoscopy and angiography.