A rare case of a pancreatic mass due to accessory spleen; when EUS-FNA is not enough - Toussaint, E.; Flamen, P.; Demetter, P.; Matos, C.; Van Gossum, M.; Delhaye, M.; Closset, J.; Loi, P.; Deviere, J.; Arvanitakis, M. (Endoscopy, 2011)