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Representative images in patients with pancreatic cancer (PC) diagnosed by the deep learning (DL) models. Original axial images (left), corresponding segmentation-masked images (middle), and DL model outputs (right) are shown. The segmented areas of the pancreatic parenchyma, main pancreatic duct (MPD), and pancreatic masses are indicated by yellow, teal, and red overlay, respectively. (A) Contrast-enhanced CT (CECT) images in an 84-year-old man with worsening diabetes mellitus show a 10-mm mass in the pancreatic body with upstream MPD stenosis and dilatation and parenchymal atrophy. The tumor was pathologically confirmed as PC (T1b). (B) CECT images in an 83-year-old man undergoing postoperative surveillance for gastric gastrointestinal stromal tumor show MPD stenosis and dilatation with parenchymal atrophy without a visible mass. The tumor was pathologically confirmed as PC (tumor in situ). (C) Noncontrast CT (NCCT) images in a 65-year-old man undergoing follow-up for mantle cell lymphoma show a 32-mm mass in the pancreatic head with MPD stenosis and dilatation. The tumor was pathologically confirmed as PC (T2). (D) NCCT images in an 81-year-old woman with abdominal distension show MPD stenosis and dilatation with parenchymal atrophy without a visible mass. The tumor was pathologically confirmed as PC (T1b).
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