Abstract
Abdominal and/or back pain is one of the most common symptoms in patients with pancreatic cancer. However, the cause of the pain and the clinicopathologic features of patients with pain have not been fully elucidated. We retrospectively determined the factors related to preoperative abdominal and/or back pain in 95 patients with resectable pancreatic cancer. Pancreatic tumor size, invasion of the intrapancreatic nerves, invasion of the anterior pancreatic capsule, and lymph node metastasis were determined to be variables related to the pain. Pancreatic tumor size, invasion of anterior pancreatic capsule, and lymph node metastasis were also variables significantly correlating to pain intensity. Survival also correlated with pain intensity: the median survival periods were 29 months in patients without pain, 19 months in those with mild pain, and 9 months in those with severe pain who required analgesics. Larger pancreatic tumors, invasion of the intrapancreatic nerves, and invasion of the anterior pancreatic capsule may cause abdominal and/or back pain in patients with resectable pancreatic cancer. This study also suggests clinical implications of the pain intensity as a prognostic factor in patients with resectable pancreatic cancer.
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