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Signal intensities of FDG-uptake according to SMAD4 expression. The signal intensity of FDG-uptake in preoperative PET-CT scan is related to SMAD4 expression in resected left-sided pancreatic cancer. Low-signal intensity in FDG-PET-CT (A) was found to represent intact SMAD4 expression (B), whereas high-signal intensity of FDG uptake (C) reflected no SMAD4 expression (D). FDG = fluoro-deoxyglucose, PET-CT = positron emission tomography-computed tomography.
