Preoperative computed tomography-based risk stratification model validation for postoperative pancreatic ductal adenocarcinoma recurrence

Figure 2 A 61-year-old male with resectable pancreatic ductal adenocarcinoma. Axial contrast-enhanced computed tomography images revealed a 1.7 cm mass in the body of the pancreas (indicated by the arrow), which was hypodense in both. The image scale was approximately 0.55 mm per pixel. A: Arterial phase; B: Portal venous phase. There was no evidence of tumor necrosis, peritumoral invasion, or suspicious metastatic lymph nodes. The patient was given a risk score of 1, placing him in the good prognosis group. Following a standard pancreaticoduodenectomy, the patient survived for 65 months without any tumor recurrence.