Malignant transformation of anomalous opening of the common bile duct in the pylorus as well as in the duodenal bulb: report of two cases

Appearance of anomalous bile duct opening, especially the presence of the papilla Vateri in the duodenal bulb and in the pylorus is extremely rare. There are only a few reports mentioned in the literature, where similar cases had been described. We could have found no information about malignant transformation of a such located papilla Vateri at all. For the time being the possibility of a tumour was assumed in three cases, but in none of them its evidence had been proved by surgical samples or histological processing. In our cases we found two tumours of the atypically located papilla Vateri in the pylorus and…