Pancreatic endocrine tumors (PETs) are rare tumors (1 per 100,000 population). They occur, or are at least discovered, most commonly in the fourth and fifth decade of life with a slight female predominance. They are classified as functioning (70% of cases) if responsible for a clinical syndrome related to hormonal release, or non-functioning if there are no hormone-related symptoms attributable to the tumor (15-30% of cases). The most common PETs are insulinomas and gastrinomas. Insulinomas are found within the pancreas more than 90% of the time. In this lecture, Professor Dallemagne shows the laparoscopic treatment of these lesions.