the expression of type iv collagen in premalignant epithelial lesions ( hpv with and without cervical intraepithelial neoplasia ) was identical with that in the bm of normal exocervical epithelium , in contrast to 60 % ( 3/5 ) of carcinoma in situ lesions and 90 % ( 10/11 ) of invasive carcinomas , where the staining pattern was interrupted and the staining intensity reduced .
C0206708
cervical intraepithelial neoplasia
C0007099
carcinoma in situ