1. Pancreatic cancer can be divided into pancreatic head cancer, pancreatic body cancer, pancreatic tail cancer, and total pancreatic cancer according to the site of cancer occurrence.
2. The early symptoms of pancreatic cancer also vary with the site of occurrence. Pancreatic head cancer is most likely to cause jaundice, liver enlargement, and lightening of stool color, resembling white clay, due to easy compression of the common bile duct, blocking the excretion of bile juice, causing bile to seep into the blood. Therefore, pancreatic head cancer is more likely to be detected early. The symptoms of pancreatic body cancer are mainly pain, because the pancreas is adjacent to the celiac plexus, and the lesion is prone to invade nerves, causing intermittent or persistent pain, which worsens at night; the symptoms of pancreatic tail cancer are more concealed, pain is not common, in addition to general weight loss, fatigue, anorexia, and poor digestion, sometimes it is manifested as an abdominal mass, which is easily misdiagnosed as a left kidney disease. Therefore, patients must do a good job of examination and diagnosis, and it is best to go to a regular large hospital for diagnosis and treatment.
3. The boundary between the body and tail of the pancreas cannot be clearly defined, so it is generally referred to as pancreatic body-tail cancer. Pancreatic cancer occurring in the body and tail of the pancreas accounts for only 30%. Pancreatic body-tail cancer can destroy islet tissue and produce diabetes, and can be accompanied by peripheral venous thrombosis, leading to splenomegaly and portal hypertension, which may be due to the secretion of some substances by the tumor promoting blood coagulation. The metastasis of pancreatic body-tail cancer occurs earlier than that of pancreatic head cancer, is more common and extensive, and can metastasize to local lymph nodes, liver, peritoneum, and lung.