PMC6139994_01
Esophagogastroduodenoscopy findings. Images show a semi-pedunculated, 5 x 6-cm polypoid tumor in the greater curvature of the upper gastric body (a, b).
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Esophagogastroduodenoscopy showed a giant (5-6 cm), semi-pedunculated polypoid tumor located at the greater curvature of the upper gastric body (Fig. 1).
Computed tomography findings. Images show tumor located around the border of fornix and upper body of stomach (a), and stalk-like structure at root of the polyp (b).
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Contrast CT showed a stalk-like structure at the root portion of the polyp (Fig. 2).
Pathological findings. Foveolar hyperplasia on polyp surface (a; magnification x20) and cystically dilated glands (b, magnification x40). Cells at the base of glands are similar to those in fundic glands (c). Desmin staining shows arborizing smooth muscle bundles extending up to the superficial lamina propria (d).
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Histopathological assessment revealed foveolar hyperplasia on the surface of the polyp and cystically dilated glands (Fig. 3a and b), with cells at the base that resembled those in the fundic glands (Fig. 3c). Desmin staining showed arborizing smooth muscle bundles extending up to the superficial lamina propria (Fig. 3d). The overlying epithelium did not contain any atypical cells (Fig. 3a, b and c).