- Class I. Absence of atypical or abnormal cells
- Class II. Atypical cytology but no evidence of malignancy
- Class III. Cytology suggestive of, but not conclusive for, malignancy
- Class IV. Cytology strongly suggestive of malignancy
- Class V. Cytology conclusive for malignancy
I~V까지 있는 세포 판독 기준을 문의하여 찾아 보았다.