TLR7 and pancreatic neoplasm: TLR7 and TLR8 expression in pancreatic cancer, chronic pancreatitis, and normal pancreatic tissue was analyzed by immunohistochemistry in pancreatic tissue from patients with pancreatic cancer (UICC II and UICC III, n=48), chronic pancreatitis (n=8) and in normal pancreas (n=8).