Melanoma is a malignant tumor that originates from the melanocytes, primarily involving the skin. Its incidence is rising worldwide in the white population, especially in those areas where fair-skinned peoples receive excessive sun exposure. 1 The incidence of cutaneous melanoma has increased at rapid rate during the last 50 years, much higher than any other cancer in the world, with an estimated 91 270 new cases in 2018 only in the United States. 2 Such alarming epidemiological data show that melanoma is a major public health problem and it requires further attention.The principal clinical and histological melanomas' subtypes are as follows: superficial spreading melanoma, lentigo maligna melanoma, nodular melanoma, and acral lentiginous melanoma (ALM). 1 Despite being the least common of the four major subtypes, it has been reported that 7% of all cutaneous melanomas are located at acral