PMC7388163_01
Upper digestive endoscopy: gastric wall with subepithelial lesion with effect of intraluminal mass.
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Endoscopy of the upper digestive tract revealed a subepithelial lesion with a compressive effect on the posterior side of the antrum and duodenum, occupying space in the gastric lumen (Fig. 1).
Endoscopic ultrasound: subepithelial lesion with exophytic area.
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Therefore, an endoscopic ultrasound of the stomach and duodenum was performed (Fig. 2), which showed a subepithelial lesion with exophytic and ulcerated area, homogeneous hyperechogenic 12 x 8 cm, dependent on the 3rd echo layer and partial involvement of the muscularis propia, in the gastric greater curvature and antrum.
Surgical pathology: gastric liposarcoma.
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When cut, the mass was solid multi-lobed yellow, had well-defined contours with a nodule larger than 8 x 6 cm, and showed a myxoid appearance (Fig. 3).