case_images: PMC10926854_01
case_images: Buccal mucosal pathology after challenge testing. We biopsied our patient's buccal mucosa immediately after intraoral bleeding developed due to her ingestion of potato snacks. Hematoxylin and eosin staining shows telangiectasia (black arrows) (a) and edema (black arrows) (b) of the subepithelial submucosa. Immunohistochemistry for c-kit reveals mast cells (red arrows) (c). The images in panels (b and c) are of the same section.
case_images: JAA-17-161-g0001.jpg
case_images: PMC10926854_01_JAA-17-161-g0001.jpg
case_images: f0001
case_images: Routine histology showed telangiectasia of the buccal mucosa (Figure 1a) and interstitial edema in the subepithelial submucosa (Figure 1b). In addition, c-kit immunohistochemistry revealed mast cell infiltration (Figure 1c).