Hello, Thanks for posting your query. This is suspected as melanoma. Melanoma is a form of skin cancer that develops from cells called melanocytes. Sun exposure, particularly sunburn, can cause skin damage that can lead to melanoma. Diagnosis of melanoma is confirmed with an excision biopsy of the suspicious lesion. Treatment of melanoma depends on the extent of disease. About 95% of patients with melanoma are treated with surgery. Treatment is based on tumour depth, level of invasion, risk of metastases, and patient/physician preference. Primary melanoma is treated by surgical removal (excision) of the lesion. If the melanoma is thin (usually less than 1.5 mm) and has not deeply invaded surrounding healthy tissues, excision cures the cancer. The excision might involve removing a considerable margin around the lesion to maximise chances of cure. Hope I have answered your query. Wishing you good health. Regards.