The chance of benign pancreatic tumors is relatively small, about 10%-20%, while malignant tumors are more common. Benign tumors are relatively regular and have clear edges, and will not press other organs or blood vessels or nerves around the pancreas. However, malignant tumors of the pancreas are often irregular in shape and the borders are not very clear, and they tend to invade the surrounding tissues and organs. It is easier to distinguish benign tumor from malignant tumor under ultrasonography or enhanced CT or MRI. If you want to determine the benignity or malignancy of pancreatic tumor, you need to undergo surgical resection or puncture biopsy for pathology to confirm the final diagnosis.