<prompt> Elderly man with long-standing mole over the face which is increasing in size and showing irregular border. Diagnosis:Superficial spreading melanomaLentigo malignaAcral melanomaNodular melanoma  <response>: Lentigo maligna- occur on face sun exposed areas of older individuals,long standing cases,manifests as a flat,dark,variably pigmented lesion,with irregular borders and a history of slow development,best prognosis Superficial spreading melanoma- mc type , mc site torsotrunk Nodular- most malignant,veical growth phase Acral melanoma-least common ,mc site great toe nail 