This study is designed to collect samples like blood, saliva, urine, or stool from children to look for gene changes (mutations) that might raise their chances of getting pancreatic cancer. Pancreatic cancer is a serious disease that affects the pancreas, an organ that helps with digestion and regulating blood sugar. The study focuses on children with acute recurrent pancreatitis (ARP), which means they have had episodes of inflamed pancreas that go away and then come back, and chronic pancreatitis (CP), which means their pancreas is constantly inflamed and damaged. Over four years, children will answer questions about their quality of life for 2 hours every year and provide samples. After the study, follow-ups happen yearly.

• Eligible children must be under 18 and have ARP or CP.
• Participants' parents must agree to share their child's health information.
• The study requires a yearly visit for four years.