Pancreatic cystic adenoma is often referred to as pancreatic cystadenoma, and its ultrasound features are mainly honeycomb-like echogenic areas in the pancreas, and blood flow signals are detected in the cystic wall or papillary structures. The color ultrasound features of pancreatic cystadenoma mainly include multilocular or honeycomb echogenic areas in the pancreas; some lesions have thick cystic wall and septum, with solid papillary structures protruding into the lumen at the edges; color Doppler imaging may show that there is no blood flow signal inside the lesion, and a small amount of blood flow signal is detected inside the cystic wall and papillary structures. Compared with color Doppler imaging, MRI can show the structural features of pancreatic cystic tumors more clearly, and can more accurately indicate the presence of pancreatic duct dilatation and the relationship between the cystic lesion and the pancreatic duct.