胰腺癌影像学表现英语读片.ppt

1、The imagingmanifestation of pancreatic carcinoma,Lu tao,definition,Pancreatic carcinoma begins in the tissues of the pancreas . Exactly ,Pancreatic carcinoma is derivedfrom the pancreatic exocrine section（外分泌部）.,anatomic structure,Pancrease is located in the retroperitoneal epigastric area, across b

2、etween 1 2 lumbar. it devided into head、 neck, body and tail.,anatomic structure,Pancreas is the largest gland in the body, Its shape is long and narrow. 12 16 cm long 3 4 cm wide 1.5 2.5 cm thick weighs about 80 g,general situation,Pancreatic carcinoma is the most commontumorofpancreas At present,t

3、he prognosis remains poor,high mortality rate According to reports,around the world each yearnew primarypancreatic carcinoma patientsis about 185000cases The mortality rateis nearly 100%.,general situation,Pancreatic carcinoma in theelderlymore common,but there are alsochildrensreports of patients.

4、pancreatic carcinoma Mostly occurs in thehead of pancreas,accounts for about75%,the body and the tail is next . Sometimes the threeparts are involved , calleddiffuse pancreatic carcinoma.,etiology,Pancreatic carcinoma etiology is unclear, besides genetic factors, smoking, drinking, chronic pancreati

5、tis and diabetes have a close relationship with the risk of developing pancreatic carcinoma. Too much coffee and high fat diet may also be associated with pancreatic carcinoma.,Clinical feature, Weight loss Abdominal pain Jaundice黄疸 Steatorrhoea脂肪痢 Diabetes Mellitus Acute Pancreatitis Malignant Asci

6、tes Gastric Outlet Obstruction,CT Imaging findings,CTfeatures: 1.pancreaticparenchymal mass,as its mainfeatures.Tumormorphology for the oval,lobulated orirregularmass,irregular margin,and theboundary ofpancreatic tissueis not clear.,Contrast-enhanced scan（Arterial phase）：the mass was slightly enhanced and the SMA （superior mesenteric artery ）was surrounded by the mass.,Portal venous phase ：The enhancement of the mass is slowly strengthened.,CT Imaging findings,2. Pancreaticcontour,co