CD34 and neoplasm: In particular, when compared the Kaplan Meier curves between groups [tumor with CD34 (+) vs. CD34 (−)] or groups [tumor with BRAF (+) vs. BRAF (−)], no difference was found in patients with detection of CD34 expression (χ2 = 1.662, P = 0.192) or in patients with detection BRAFV600E mutation (χ2 = 0.842, P = 0.359) (Fig. 2).