However, membranous MUC1 weakly correlated with Ki‐67 in all carcinoma cells (ρ = 0.215, p = 0.024) and solid structures (ρ = 0.349, p = 0.011), but not in MIPs (ρ = −0.027, p = 0.814) or cribriform structures (ρ = 0.169, p = 0.087). The gene discussed is MUC1; the disease is carcinoma.