<prompt> Which melanoma is malignantJuctionalBlue nevusIntra dermalNone  <response>: Junctional 43- Bailys love 20thA. Malignant melanoma may ariseA. de - novo in apparently normal skinB. In a preexisting prigmented nevus Malignant changes in a benign nevus occurs only in the JUNCTIONAL or compound variety. Pure dermal naevus is safe 