Lentigo Maligna is also known as HMF (Hutchinson’s Melanocytic Freckle). This is an early form of melanoma with an excellent prognosis. Lentigo Maligna accounts for approximately 10% of all melanomas diagnosed by skin cancer clinics and Dermatologists in Brisbane. This form of melanoma is slow growing and can resemble a freckle, age wart or sunspot. It usually occurs on sun-damaged skin on the face, back or arms.