MIRA3006 Lecture Notes - Lecture 4: Pancreatic Cancer, Common Bile Duct, Pancreatic Duct

• School: Curtin University
• Department: Medical Imaging, Radiology & Radiography
• Course: MIRA3006
• Professor: Claudia SDR

Document Summary

70% of these patients have obstructive jaundice as a result of common bile duct obstruction. Tumours in the head of the pancreas are often detected earlier due to the invasion of vital structures around it and due to the obstruction. Adenocarcinomas appears as a hypoechoic mass, with poorly demarcated boarders. Shows pancreatic and biliary duct dilatation secondary to tumour obstruction. It is difficult to detect tumours in the tail of pancreas using us. The tumour can cause irregular contour detected using us. The introduction of microbubble contrast agents has improved the diagnostic accuracy of us in the study of pancreatic pathologies. Pancreatic head tumour obstructing the common bile duct. The tumours appear as a hypoattenuating mass on contrast enhanced ct (hypovascular) Choice for diagnosing and staging pancreatic adenocarcinomas. Margins are poorly defined, calcification is rare. Differentiation of dilated duct between chronic pancreatitis and carcinoma may be difficult.