<prompt> Most common malignant melanoma isSuperficial spreadingLentigo maligma melanomaNodularAcral lentiginous  <response>: Most common type of malignant melanoma is Superficial spreading 70. Other are Nodular melanoma12-25, Lentigo maligna melanoma 7-15, Acral lentiginous melanoma5, amelanotic melanoma and desmoplastic melanoma. Reference : page 295-96 SRBs manual of surgery 5th edition 