JAMA Surgery
An Exosomal Signature for Preoperative Detection of Occult Liver Metastasis in Pancreatic Cancer
Importance Early liver metastasis (early-LiM) after pancreatectomy represents an aggressive biological phenotype of pancreatic ductal adenocarcinoma (PDAC) and is associated with markedly poor survival. Reliable preoperative biomarkers to identify occult hepatic micrometastasis remain lacking. Objective To develop and externally validate a circulating exosomal microRNA (exo-miRNA)–based machine learning model for preoperative detection of occult early-LiM in PDAC. Design, Setting, and Participants This multicenter …