“…Ultimately, 32 papers reporting on a total of 489 pediatric patients with pancreatic tumors satisfied predetermined search criteria and were included in this systematic review ( Figure 1). [3][4][5][6][7] Nine studies were conducted in the United States, 3,6,7,16,22,23,31,35,39 five in Korea, 13,20,26,28,29 four in Canada, 4,19,21,34 Data regarding history of prior trauma, pancreatitis, and underlying genetic syndromes as well as measurement of preoperative tumor biomarkers were not available in most studies. Supplementary Table S2 summarizes the demographics of systematically reviewed studies and Table 1 provides an overview of the clinicopathological characteristics of pediatric and adolescent patients with pancreatic tumors stratified by histologic subtype.…”