case_images: PMC9970792_01
case_images: Esophagogastroduodenoscopy (EGD) finding of a large hiatal hernia, gastritis, and a submucosal lesion seen in the gastric antrum along the anterior wall.. EGD - Esophagogastroduodenoscopy
case_images: cureus-0015-00000034316-i01.jpg
case_images: PMC9970792_01_cureus-0015-00000034316-i01.jpg
case_images: FIG1
case_images: Findings of a large hiatal hernia, gastritis, and a submucosal lesion were seen in the gastric antrum along the anterior wall, as depicted in Figure 1.
case_images: Endosonography (EUS) showing an 18.5 x 17.5 mm lesion in the gastric wall.
case_images: cureus-0015-00000034316-i02.jpg
case_images: PMC9970792_01_cureus-0015-00000034316-i02.jpg
case_images: FIG2
case_images: Endosonography showed an 18.5 x 17.5 mm lesion in the gastric wall from the muscularis propria, slightly hypoechoic with a heterogenous appearance, multiple vessels within the lesion, small area of cystic degeneration, as depicted in Figure 2.
case_images: Immunohistochemical stain with smooth muscle actin (SMA). Tumor cells show a strong positive cytoplasmic stain for SMA.
case_images: cureus-0015-00000034316-i03.jpg
case_images: PMC9970792_01_cureus-0015-00000034316-i03.jpg
case_images: FIG3
case_images: GGT was the finalized diagnosis after histology showing positive SMA and calponin, as seen in Figures 3-5.
case_images: H&E histology stain. The tumor comprises nests, or solid sleets of uniform cells with round nuclei and scant pink cytoplasm. Nuclear atypical and mitotic figures are absent.
case_images: cureus-0015-00000034316-i04.jpg
case_images: PMC9970792_01_cureus-0015-00000034316-i04.jpg
case_images: FIG4
case_images: GGT was the finalized diagnosis after histology showing positive SMA and calponin, as seen in Figures 3-5.
case_images: Immunohistochemical stain of synaptophysin. Tumor cells show moderate cytoplasmic stains for synaptophysin.
case_images: cureus-0015-00000034316-i05.jpg
case_images: PMC9970792_01_cureus-0015-00000034316-i05.jpg
case_images: FIG5
case_images: GGT was the finalized diagnosis after histology showing positive SMA and calponin, as seen in Figures 3-5.