Conventional PCs are invasive ductal carcinomas (IDCs) with poor prognosis that account for more than 80% of pancreatic tumors. Early detection of small T1 tumors of the pancreas has become possible due to recent advances in diagnostic imaging. However, most T1 pancreatic tumors are already advanced tumors and their treatment results are not favorable compared with other digestive T1 cancers . Although discovery rates are improving, resection rates are not. Many PCs are not inoperable when found, while the five-year survival rate for carcinoma in situ (CIS) is almost 100%. Therefore, it is very important to diagnose and resect pancreatic tumors at the curable in situ stage (Stage I) [2-4].
Therefore, screening examinations for early detection, identifying high risk groups, and identification of PC precursors are important areas to be addressed immediately.
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