Endoscopic ultrasound features of insulinoma of the pancreas. The appearance of insulinomas (arrows) on endoscopic ultrasonography is quite characteristic, with most tumors homogeneously hypoechoic, rounded in shape, and with distinct margins. | Okabayashi, T., Shima, Y., Sumiyoshi, T., Kozuki, A., Ito, S., Ogawa, Y., … Hanazaki, K. (2013). Diagnosis and management of insulinoma. World Journal of Gastroenterology, 19(6), 829–837. https://doi.org/10.3748/wjg.v19.i6.829

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