In a patient with a single pancreatic lesion and pancreatic duct obstruction but no masses, the most likely diagnosis is pancreatic cancer. What is the recommended definitive treatment?

In a patient with a single pancreatic lesion and pancreatic duct obstruction but no masses, the most likely diagnosis is pancreatic cancer. What is the recommended definitive treatment?

• A. Chronic pancreatitis
• B. Pseudocyst
• C. Duodenal diverticulum
• D. Pancreatic cancer

Answer: (D)

A single pancreatic lesion with pancreatic duct obstruction but no obvious mass most often points to pancreatic cancer. Tumors in the pancreas, especially in the head, can grow along or compress the pancreatic duct, causing obstruction even when a discrete mass isn’t clearly seen on imaging. This pattern helps distinguish cancer from other possibilities: chronic pancreatitis usually shows calcifications and irregular duct changes from inflammation, pseudocysts arise as fluid-filled collections often after pancreatitis, and a duodenal diverticulum is an outpouching of the duodenum not typically responsible for pancreatic duct obstruction. Therefore the scenario fits pancreatic cancer best. When cancer is localized enough to be resectable, the definitive treatment is surgical removal. For tumors in the head of the pancreas, the standard curative approach is a pancreaticoduodenectomy (often called a Whipple procedure), with the aim of removing the tumor and involved surrounding tissue, followed by appropriate adjuvant therapy as needed. If the disease isn’t resectable, treatment shifts toward systemic chemotherapy and/or radiation rather than curative surgery.

A single pancreatic lesion with pancreatic duct obstruction but no obvious mass most often points to pancreatic cancer. Tumors in the pancreas, especially in the head, can grow along or compress the pancreatic duct, causing obstruction even when a discrete mass isn’t clearly seen on imaging. This pattern helps distinguish cancer from other possibilities: chronic pancreatitis usually shows calcifications and irregular duct changes from inflammation, pseudocysts arise as fluid-filled collections often after pancreatitis, and a duodenal diverticulum is an outpouching of the duodenum not typically responsible for pancreatic duct obstruction. Therefore the scenario fits pancreatic cancer best.

When cancer is localized enough to be resectable, the definitive treatment is surgical removal. For tumors in the head of the pancreas, the standard curative approach is a pancreaticoduodenectomy (often called a Whipple procedure), with the aim of removing the tumor and involved surrounding tissue, followed by appropriate adjuvant therapy as needed. If the disease isn’t resectable, treatment shifts toward systemic chemotherapy and/or radiation rather than curative surgery.