Which of the following is NOT a non-melanoma skin cancer?

Malignant melanoma is classified as a type of skin cancer that originates from melanocytes, the cells responsible for producing pigment in the skin. It is different from non-melanoma skin cancers, which primarily include basal cell carcinoma and squamous cell carcinoma.

Basal cell carcinoma and squamous cell carcinoma are the two main forms of non-melanoma skin cancer. Basal cell carcinoma is the most common type of skin cancer, often arising from sun-exposed areas and characterized by slow growth. Squamous cell carcinoma can also result from sun exposure and may be more aggressive than basal cell carcinoma but is still categorized under non-melanoma skin cancers.

Malignant melanoma, due to its aggressive nature and potential to metastasize to other parts of the body, is a more serious condition and stands distinct from basal and squamous cell carcinomas, which generally have a better prognosis when detected early. Understanding these differences is important in skin cancer prevention, diagnosis, and treatment.