Two major pathways of penile carcinogenesis: HPV-induced penile cancers overexpress p16ink4a, HPV-negative cancers associated with dermatoses express p53, but lack p16ink4a overexpression.

Abstract excerpt

BACKGROUND: Penile squamous cell carcinomas (SCC) arise either through transforming infections with human papillomavirus (HPV) or independent of HPV, often in the background of lichen sclerosus (LS) and lichen planus (LP). Despite impact on therapy and prognosis, etiologic stratifications are missing in most histological diagnoses and publications about penile cancers/precursors. OBJECTIVE: Classification of...

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