A melanoma on your skin (often referred to as a "primary" melanoma, because melanoma most ofter starts on your skin before it spreads) is first diagnosed visually. Your doctor will look at the melanoma and walk through the "ABCD's": Asymmetry, Border, Color, and Diameter.
If your doctor suspects that the mole is irregular, they will likely cut it out and perform a biopsy. The biopsy will determine whether the mole is a melanoma or not.
If your doctor is trying to diagnose melanoma once it has already begun to spread, they will either cut the growth out and biopsy it, or if they can't cut it out, they will use a PET scan and a CT scan to determine if it is likely to be cancer.
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Melanoma is generally known as a cancer, which develops in pigment cells called melanocytes. Most melanomas are identified easily as their signs or symptoms remain visual. But if an abnormal skin area increases the skin cancer’s suspicion then doctor will suggest a test like biopsy. They are performed through the help of medical devices present at ilexmedical.com and many other sites too. Early detection is the key to get good cure of this problem. Its treatments rely on the factors such as (tumor thickness, body location, age and other health issues.