The second case, initially diagnosed as urothelial/endometrial carcinoma at a uterine cervical biopsy, was modified to a poorly differentiated (G3) squamous cervical cancer by using additional immunohistochemistry such as: CK20, CK7, WT-1, P53, P16 and P63. The gene discussed is TP53; the disease is cervical squamous cell carcinoma.