Hi, Your cousin has a pancreatic cyst, it requires treatment if it is causing symptoms. Since she is sick, she may require removal either by Endoscopic(key hole )surgery or open surgery. This can be attempted in 2 trimester (4 to 6 months of pregnancy), as these months are relatively safer to carry out surgical procedure on pregnant women, with minimal harm to mother and baby. But if her condition worsens immediate surgery is essential, as life of mother cannot be compromised, due to pregnancy. We need to save the mother first always. Hope this helps. Regards.