The authors report a case of a tumour arising in an aberant intrasplen
ic pancreas, forming a fistula with the left colon, responsible for re
ctal bleeding in a 75 year old woman and treated by surgical resection
. This tumour is classified as a heterotopic pancreatic tumour. As in
the other two cases described in the literature, this tumour was found
to be an intrasplenic mucinous cystadenocarcinoma which has a more fa
vourable prognosis than heterotopic adenocarcinomas (29 cases reported
).