PTEN and small cell lung carcinoma: PTEN was positively correlated with Vp (uniformity) in SCC (ρ = 0.836, P < 0.001), Ktrans (uniformity) in AC (ρ = 0.633, P = 0.027), Ve (kurtosis, Q10, Q25) in AC (ρ = 0.721, P = 0.008; ρ = 0.590, P = 0.044; ρ = 0.611, P = 0.035), Fp (skewness, kurtosis, energy) in SCLC (ρ = 0.941, P = 0.005)and Ve (Q75, Q90, Q95) in SCLC (ρ = 0.820, P = 0.046; ρ = 0.942, P = 0.005; ρ = 0.820, P = 0.046).