A statistically significant correlation was found between SCCA staining and: 1) mortality: negative SCCA staining was associated with 100% mortality vs a 64.71% in positive SCCA staining (p = 0.026); 2) tumor differentiation: positive SCCA staining was associated with well and moderate differentiated tumors in 95.85% of specimens (p = 0.022); 3) Ki67 immunostaining: negative SCCA staining was associated with a higher Ki67 score (p = 0.017). The gene discussed is MKI67; the disease is neoplasm.