case_images: PMC5881244_01
case_images: Macroscopic findings in gastroscopy and colonoscopy. Follicular hyperplasia in upper and lower intestinal tract.
case_images: fped-06-00073-g001.jpg
case_images: PMC5881244_01_fped-06-00073-g001.jpg
case_images: F1
case_images: The endoscopic evaluation macroscopically showed nodular hyperplastic spots particularly in the gastric antrum and terminal ileum (Figure 1).
case_images: Immunohistochemical findings demonstrating mature mast cell infiltration. Dense stromal mast cell infiltrations of up to 60/HPF [staining for CD117+ (left), tryptase (right), and CD25- (lower left image)]; mature type; cKIT-D816V mutation negative; normal crypt architecture; no eosinophils.
case_images: fped-06-00073-g002.jpg
case_images: PMC5881244_01_fped-06-00073-g002.jpg
case_images: F2
case_images: Immunhistochemically, up to 60 tissue mast cells per high power field with normal morphology were detected (no immature cell forms or spindle shapes, CD117+, MCT+, CD25-, and c-KIT D816V negative; Figure 2).