Page 152 - Screening for Cervical Cancer: Systematic Evidence Review
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Chapter I. Introduction
Carcinoma
Invasive
Squamous Intraepithelial Lesion (SIL)
Epithelial Cell Abnormalities
Low Grade (LSIL) High Grade (HSIL) Cervical Intraepithelial Neoplasia (CIN) Condyloma Grade 3 Grade 2 Grade 1 In situ Severe Moderate Carcinoma Dysplasia Dysplasia Dysplasia Mild V IV III
Figure 1. Map of Cervical Cytology Classification Schemes
ASCUS*
Benign Cellular Changes Infection Reactive Repair Atypia II
Within Normal Limits Normal I * ASCUS, Atypical squamous cells of uncertain significance.
Classification System The Bethesda System 28 Richart 29 Reagan 30 WHO Nyirjesy 31 Source: McCrory et al., 1999 32
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