<prompt> Which of the following skin condition is related to sunlight exposure?Actinic keratosisBasal cell carcinomaMolluscum contagiosumIchthyosis  <response>: Actinic keratosis are small macules or flesh colored papules which are seen on sun-exposed pas of the body in persons of fair complexion. They are considered premalignant, but only 1:1000 lesions per year progress to become squamous cell carcinomas. Molluscum contagiosum is caused by pox virus. The typical lesions are dome-shaped, waxy papules 2-5 mm in diameter with central umbilication. It is usually seen on the face, lower abdomen and genitals. It is common in patients with AIDS with a helper T cell count 100mcL. Ref: Berger T.G. 2013. Chapter 6. Dermatologic Disorders. In M.A. Papadakis, S.J. McPhee, M.W. Rabow, T.G. Berger Eds, CURRENT Medical Diagnosis Treatment 2014. 