<prompt> Skin surface elevation caused by hyperplasia and projections of the epidermis form an undulating surface under microscopic examination. What is this known as?Saw toothingPapillomatosisVilliParakeratosis  <response>: Papillomatosis of skin Skin surface elevation caused by hyperplasia and enlargement of contiguous dermal papillae. Papillary projections of the epidermis form an undulating surface under microscopic examination. 