Evaluation of malignancy using Ki-67, p53, EGFR and COX-2 expressions in gastrointestinal stromal tumors

Figure 1 Images of gastrointestinal stromal tumor using hematoxylin-eosin staining and immunohistochemical staining. A: Hematoxylin-eosin stain; B: DOG1 stain; C: Ki-67 stain; D: P53 stain; E: Epidermal growth factor receptor stain; F: Cyclooxygenase-2 stain.

Figure 2 Kaplan-Meier plots for predicting disease specific survival based on the modified National Institutes of Health consensus system (A), Ki-67 expression (B) and adjuvant imatinib therapy (C).