Fig. 3

Other features of GIST. a Skeinoid fibers. (H&E stain, × 400). b Rhabdoid features (H&E stain, × 400). c Intranuclear inclusion (H&E stain, × 600). d Myxoid changes (H&E stain, × 100). e Hyalinized blood vessels (H&E stain, × 400). f Calcification (H&E stain, × 100). g Muscular invasion (H&E stain, × 40). h Mucosal invasion (H&E stain, × 400). i Peritumoral lymphocytic aggregation (H&E stain, × 100)