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Recurrent gastrinoma. Fused axial FDG PET_CT images of the abdomen show hypertrophy of the parietal cells in the gastric fundus because of elevated gastrin production. This can mimic gastric cancer as is shown in this case ((a,b), white arrowheads). Bilateral adrenal metastases are present ((b), white arrows) There are also dilated fluid-filled loops of bowel due to a hypersecretory state (c).
