CT examination of pancreatic cancer (1) pancreatic cancer: is a common one after the pancreatic tumor, occurs in the 40_60 years. More male, 60% _80% in the membrane of head and neck, the rest of the body or tail. CT diagnosis of pancreatic cancer up to 85% accuracy rate, the use of percutaneous fine-needle aspiration biopsy can improve the diagnosis of membrane mass accuracy.
The CT showed local tumor or all of the increase in real terms; the disappearance of peripancreatic fat layer and invading the adjacent organs; blood vessels and regional lymph node involvement; appear obstructive biliary dilatation; film head cancer invasion, oppression of the lower common bile duct can cause bile duct , gallbladder, bile duct and intrahepatic bile duct obstruction in the expansion; membrane tube expansion.
(2) pancreatic cystic tumor: rare in clinical practice. From the pathology is divided into two types: mucinous and serous. Pancreatic serous cystic tumor is a benign adenoma, a majority in the whole pancreas, small cysts, shaped like a honeycomb, uneven wall thickness, capsule containing a transparent liquid. CT showed a cystic mass with clear boundary, due to the enhanced capsule was separated from the honeycomb, and calcium plaques can be seen, the typical radial calcium spots.
CT examination of pancreatic tumors: pancreatic mucinous cystadenoma can be divided into benign adenomas or malignant adenomas. The larger the tumor capsule, single or multiple, capsule contents as mucus, blood and necrotic tissue, smooth outer wall, the majority of nodules or localized wall thickening visible. CT showed cystic masses of the border and clear, large cysts, single or multiple, focally cystic nodules, and the Central Authorities have the interval, low density and uniform capsule contents, such as membrane expansion occurs, may be suspected to be malignant.