巴氏涂片可以使宫颈鳞癌以及其癌前病变得到较早的诊断和治疗。图中、左示鳞状细胞癌的间质浸润。

备注：宫颈涂片检查是目前宫颈癌普查常规使用的方法。宫颈涂片检查是取宫颈脱落细胞涂片，然后酒精固定，采用巴氏染色法观察细胞形态，以初步了解有无癌存在。巴氏Ⅰ级为正常细胞涂片，巴氏Ⅱ级为炎症细胞；Ⅲ级代表可疑癌；Ⅳ级代表高度可疑癌；Ⅴ级肯定为癌

This is why you do Pap smears--to prevent invasive squamous cell carcinomas from occurring. With Pap smears, pre-neoplastic and neoplastic cervical lesions can be detected when small and treated. Nests of squamous cell carcinoma have invaded underlying stroma at the center and left.