Comparing CYP26B1 negative tumours with tumours that showed any CYP26B1 immunoreactivity then poorer survival was associated with CYP26B1 expression (HR = 1.604, 95%CI = 1.207–2.132, χ2 = 10.796, p = 0.001). The gene discussed is CYP26B1; the disease is neoplasm.