case_images: PMC7328486_01
case_images: Endoscopic appearance of a bleeding submucosal lesion (arrow) with
  umbilication, located in the gastric antrum.
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case_images: EGD showed an actively oozing umbilicated submucosal lesion in the gastric antrum, with a greatest dimension of 10 mm (Figure 1).
case_images: Endoscopic ultrasound showing a hypoechoic lesion (as pointed out by the
  label:mucosal nodule) arising from the gastric submucosa and extending into
  the mucosa.
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case_images: EUS demonstrated a 10-mm deep mucosal or superficial submucosal lesion manifesting superficial erosion, with no evidence of invasion into the surrounding structures or deeper layers (Figure 2).
case_images: Pathologic examination of the resected gastric polyp showing a superficial
  erosion, inflammatory submucosal infiltrate (star), and fibroblastic
  proliferation (arrowhead) (hematoxylin and eosin staining; 40x).
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case_images: Pathologic examination of the resected specimen revealed superficial erosion with inflammatory submucosal infiltrate and fibroblastic proliferation (Figure 3).
case_images: Tumor showing bland spindled cells (arrow), small vessels, and an
  eosinophil-rich mixed inflammatory infiltrate (arrowhead) (hematoxylin and
  eosin staining; 200x).
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case_images: The stroma of the lesion consisted of bland spindled cells, small vessels, and eosinophil-rich mixed inflammatory infiltrates (Figure 4).
case_images: Tumor showing inflammatory submucosal infiltrate of eosinophils and
  lymphocytes, fibroblastic proliferation, and perivascular onion skinning
  (arrow) (hematoxylin and eosin staining; 400x).
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case_images: High-power examination showed a perivascular onion-skinning pattern and an inflammatory infiltrate composed of lymphocytes and eosinophils (Figure 5).