During his career Professor Testoni has been involved in the development of surgical endoscopy of the biliary tract and pancreas (he has performed over10000 endoscopic retrograde cholan giopan creatography or ERCP procedures), new technologies in endolumina surgery of the digestive tract (in the treatment of gastroesophageal reflux, Barrett's oesophagus and oesophageal and gastric motility disorders.as well as for the removal of precancerous lesions and earlv forms of cancer) and advanced endoscopic imaaina techniaues particularly of the pancreas.