On the other hand, CD34 is often used to assess the microvessel density (MVD) of tumour tissues, including NSCLC, and is closely related to tumour angiogenesis, invasiveness, and microenvironmental constitutive cellular activity (Tanaka et al. 2001, 2003; Schulze et al. 2020). The gene discussed is CD34; the disease is non-small cell lung carcinoma.