Contrast CT revealed diffuse enlargement of the pancreas with a suspicious lesion in the uncinate process in a 57-year-old man who presented with jaundice. F-FDG PET/CT showed increased radioactivity in the enlarged pancreas with a nodular lesion with even higher uptake in the uncinate process. To differentiate autoimmune pancreatitis and pancreatic cancer, Ga-FAPI PET/CT was performed. It revealed intense Ga-FAPI uptake in the pancreas, but the FDG-avid lesion in the uncinate process was not shown. The patient was finally diagnosed with pancreatic cancer with tumor-induced pancreatitis with endoscopic ultrasonography-guided biopsy.
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Luo et al. (2020) studied this question.
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