PMC5559655_01
Endoscopic view of multiple gastric polyps throughout the stomach.
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F1
Endoscopic examination of the stomach revealed multiple large, pedunculated, and sessile polyploid lesions seen diffusely throughout the stomach, some of which were ulcerated (Figure 1).
(A) Aspirated material from the gastric mass is hypercellular with plasmacytoid cells arranged singly and in loose aggregate (diff quick stain 100x). (B) Higher magnification of aspirated material reveals neoplastic plasma cells displaying marked pleomorphism, binucleation, and prominent nucleolus (diff quick stain 400x).
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F2
Biopsies and FNA of the gastric polyps were consistent with plastocytoma (Figure 2).