Malignant melanomas are less common than carcinomas, but these skin tumors are more aggressive. Melanomas develop from the pigment cells that color the skin (new pigment spot or pigment spot that changes appearance). They can lead to remote lesions (metastases). The prognosis is usually good if melanoma is detected in time. So early diagnosis is crucial, especially in high-risk patients (family history, fair skin, intense sun exposure in childhood)