Fig. 2

Intraoperative findings. A scarlet red retroperitoneal tumour located between the colonic hepatic flexure, the 2nd to 3rd parts of the duodenum, pancreatic uncinate process and the abdominal aorta. The tumour had a complete capsule and dense peritumoural adhesions to the surrounding blood vessels (a). The tumour was completely removed (b). The tumour body measured 12.5*8*3 cm. Haemorrhage was observed inside the tumour body, and old blood clots could be seen (c)