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Patient with neuroendocrine tumor. a EUS showing homogenous hypoechoic SET in the duodenal bulb with clear perfusion in the color Doppler mode. b EUS-FNB-acquired tissue showing cell clusters with eosinophilic cytoplasm and round nuclei with salt & pepper chromatin (HE stained, × 200). c Imunohistochemical positivity for synaptophysin (x200)
