case_images: PMC11335634_01
case_images: Abdominal ultrasonography images of the pylorus lesion. The arrowheads indicate a mass in the pylorus region, measuring 2.1 cm x 2.2 cm. The mass is surrounded by thickened gastric wall.
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case_images: PMC11335634_01_fvets-11-1427218-g001.jpg
case_images: fig1
case_images: Abdominal ultrasonography revealed a 2.1 cm x 2.2 cm hypoechoic, homogeneous, marginal mass in the pyloric region of the stomach (Figure 1).
case_images: Computed tomography post-contrast scan images (A): axial, (B): coronal, (C): sagittal view. The arrow indicates a mass in the pyloric antrum region that is causing pyloric outflow obstruction.
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case_images: PMC11335634_01_fvets-11-1427218-g002.jpg
case_images: fig2
case_images: Computed tomography revealed a focal, well-circumscribed, smoothly marginated mass in the pyloric antrum, which did not show contrast enhancement (Figure 2).
case_images: Intraoperative images of the patient. (A) The mass is observed in the pyloric antrum. (B) The lesion is a resected pyloric mass.
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case_images: PMC11335634_01_fvets-11-1427218-g003.jpg
case_images: fig3
case_images: The greater and lesser omentum and portal triad of the gastroduodenal junction were isolated, and a mass was identified in the pyloric antrum (Figure 3).
case_images: Histopathological examination of the pyloric lesion (IDEXX Laboratories, Westbrook, Maine, United States). (A) In the wall of the stomach, an abscess area with abundant necrosis and many degenerate neutrophils are observed (H&E: x20 magnification). (B) Sharply delineated, angular fragment crystalline foreign materials are identified within the lesion (H&E: x20 magnification).
case_images: fvets-11-1427218-g004.jpg
case_images: PMC11335634_01_fvets-11-1427218-g004.jpg
case_images: fig4
case_images: A circumscribed mass-like area with abundant necrosis and numerous degenerate neutrophils was observed in the stomach walls (Figure 4A). Additionally, multifocal, thin, smooth, sharply delineated, refractile appearing eosinophilic to orange, angular fragments indicative of crystalline foreign materials were identified within the lesion (Figure 4B).