Clin Endosc.  2022 Mar;55(2):313-314. 10.5946/ce.2022.039.

A Rare Cause of Subepithelial Tumor in the Gastric Fundus

• Kim DM
• Kim GH
• Kim K

• KMID: 2527580
• DOI: http://doi.org/10.5946/ce.2022.039

Figure

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  Fig. 1. (A) Initial endoscopy reveals a small subepithelial tumor on the posterior wall of the gastric fundus. (B) On endoscopic ultrasonography, the tumor presents as a heterogeneously hypoechoic lesion in the submucosal layer, measuring 0.8 cm in diameter. (C) On follow-up endoscopy 2 years later, the tumor has increased in size although no erosion or ulceration is noted. (D) Traction-assisted endoscopic submucosal dissection is performed. (E) The tumor is removed completely. (F) The inner surface of the resected specimen.

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  Fig. 2. (A) Histopathological examination reveals spindle cell proliferation and infiltration of lymphocytes and plasma cells in the submucosal layer (hematoxylin & eosin stain, ×200). (B) The spindle cells are immunopositive for CD34, and immunonegative for c-kit, smooth muscle actin, and S-100 protein (CD34 stain, ×100).

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