<prompt> A farmer presented with a black mole on the check. It increased in size, more than 6mm with sharply defined borders with central black lesion, what could be the diagnosis?Acral lentigo melanomaSuperficial spreading melanomaLentigo maligna melanomaNodular melanoma  <response>: Superficial spreading melanoma It is the MC type of melanoma It is the MC type which occurs in a patient with pre existing mole. RF for superficial spreading melanoma- Increasing age Melanoma in situ Many melanocytic nevi Multiple 5 atypical nevi Strong family HO melanoma 