Pancreatic cysts are becoming increasingly recognised and diagnosed. Pancreatic cysts exhibit a wide variety of behaviour from being completely benign (non cancerous) to lesions that harbour a cancerous component. Some pancreatic cysts will turn into a cancer if left for long enough. Pancreatic cysts are often asymptomatic however may present with symptoms such as abdominal discomfort, weight loss or jaundice (turning yellow). The most common type of pancreatic cyst is a pseudocyst which results from a previous attack of pancreatitis. Other types of pancreatic cysts include a serous cystadenoma (SCA), mucinous cystadenoma (MCA) and Intra-ductal papillary mucinous neoplasm (IPMN). The diagnosis of the type of cyst is normally made via a combination of imaging tests (CT and MRI) and other specialised tests such as an Endoscopic Ultrasound (EUS).