Nikolas
Created page with "<section begin="dermatology" />* Precancerous lesions of squamous cells * Occurs in elderly with light skin * Risk factor: UV exposure * Clinical features ** Small lesion with rough surface ** -> lesion grows and becomes erythematous and scaly ** On sun-exposed areas ** May develop into a cutaneous horn * Treatment ** Few lesions *** Cryotherapy ** Many lesions *** 5-FU *** Imiquimod ** Prevention with sunscreen<section end="dermatology" /> Category:Dermatology"