Fig. 1From: HPV infection and vaccination in Systemic Lupus Erythematosus patients: what we really should know a Sequential steps for cervical cancer: Infection with carcinogenic HPV type(s), followed by detectable viral persistence, linked to the progression of cervical premalignant lesion, and finally, invasion (Adapted from Schiffman M. et al.) [50]. b Colposcopy of normal cervix, high-grade squamous intraepithelial lesion (HSIL) and Squamous Cell CarcinomaBack to article page