Immunohistochemical staining of tumor cells was positive for Glut-1, CD31, and CD34 and negative for pan-cytokeratin (AE1/AE3), epithelial membrane antigen (EMA), desmin, myogenin, S100, c-kit, and D2-40 (Figures 3 and 4). The gene discussed is MUC1; the disease is neoplasm.