This video tells us about premalignant skin lesions which are basically lesions having the potential to be transformed into carcinoma and shows cellular atypia at the epidermis. This video deals with the types of skin lesions involves and their respective pathology. TIMELINE: 0:04 Introduction 0:28 Actinic / solar keratosis 1:20 Cutaneous horns 1:58 Keratoacanthoma 3:35 Bowen's disease 4:36 Extramammary Paget’s 5:21 Giant congenital pigmented nevus 6:44 Dysplastic nevus 7:50 ABCDE conclusion 8:24 End