Citologia Cervicale
Squamous carcinoma of the cervix, cervical intraepithelial neoplasia (CIN) and atypical squamous cells of undetermined significance (ASCUS)
 
CIN 3 (carcinoma in situ): Undifferentiated neoplastic cells occupy the full thickness of the epithelium. Mitoses including abnormal mitoses can be seen throughout. Note that intraepithelial cancers the basement membrane is in tact and the stroma is not invaded by tumour cells.