KRT19 and cervical cancer: In an attempt to improve the molecular detection of UCC nodal involvement, we evaluated the prognostic potential of several biomarkers that characterize the epithelial origin of cervical cancer cells, such as cytokeratin 19 (CK19), mucin 1 (MUC1), and human epidermal growth factor receptors 1-4 (HER 1-4) [26].