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Above: A ventrodorsal abdominal radiograph following double contrast gastrography. Arrows point to gastric margin irregularity with contrast retention along the lesser curvature, which is suggestive of focal ulceration.

Right: Endoscopic appearance of the ulcer (arrows) found at the lesser curvature during gastroscopy

Computed tomography images

Above: Ventrodorsal survey abdominal radiograph showing a soft-tissue opacity along the lesser curvature (arrows) and extending toward the pylorus. Note the gas-filled gastric
fundus and cardia. Gas normally accumulates in the gastric antrum but cannot due to the gastric mass.

Left: Intravenous
contrast-enhanced transverse view showing gross mucosal irregularity due to a mass (arrows) along the lesser curvature

Below: Sagittal views
reconstructed from transverse view, shown to provide
further context

Ao=Aorta
L=Lumen of stomach
Li=Liver
M=Mass
V=Vertebra