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Gastric adenomas. A: Gastric adenomas are frequently solitary and most commonly found in the antrum. They are often flat or sessile and can range greatly in size, but most are greater than 1 cm. B: Low-grade glandular dysplasia defines these lesions. A darker, dysplastic epithelium is seen on the left side of the tissue. An abrupt transition to normal, nondysplastic epithelium can be seen on the right side (hematoxylin and eosin stain, 100× magnification).
