PECAM1 and metastatic malignant neoplasm in the lymph nodes: Finally, we have associated both the presence of CD105-positive blood vessels within the epithelial cell clusters and the number of stromal CD105- or CD31-positive blood vessels with the FIGO stage, lymph node metastasis, tumour size, infiltration depth, vascular space involvement, parametrial invasion, human papillomavirus (HPV) status and histology.