MSX2 and neoplasm: Cytoplasmic Msx2 expression was an independent predictor of prolonged OS (HR 0.58; 95% CI 0.36-0.93; P = 0.023), along with tumour grade (HR 1.78; 95% CI 1.06-2.99; P = 0.028) and nodal status (HR 3.06; 95% CI 1.95-4.80; P < 0.001).