Mole Versus Melanoma: How to Tell the Difference

While it is not the most common type of skin cancer, melanoma is the most dangerous due to its greater likelihood of spreading to other parts of the body if not found and treated promptly. 

Early detection and knowing what to look for are important to ensuring the best possible outcome.

At his practices throughout the Los Angeles area, Dr. Trevan Fischer uses his skills as a complex general surgical oncologist to diagnose and treat a variety of cancers, including skin cancer.

Through his work on clinical trials at the Saint John's Cancer Institute, Dr. Fischer is well-versed in the latest knowledge and cutting-edge techniques and brings these breakthroughs to his patients.

Melanoma

Our skin gets its color from the pigment melanin, which is made by cells known as melanocytes. Melanoma begins as cancer in these specific cells.

Mole versus melanoma

In 20-30% of cases, melanoma occurs in existing moles, so recognizing the difference between a typical mole and one that may be harboring skin cancer is crucial. 

Fortunately, there are some easy tips to help you remember.

A, B, C, D, E

This mnemonic device is as easy as the alphabet.

A = asymmetry

Typical moles are symmetrical, with each side matching the other. If a mole doesn't look like a circle or oval, it could be a sign of an issue.

B = border

Most moles have smooth and even borders. If one has notched or scalloped edges or is uneven, get it checked out.

C = color

A mole is most commonly brown, but in the case of melanoma, it can be multiple colors, including shades of tan, brown, or black. 

Red, white, and blue colors may also develop as it grows.

D = diameter or dark

Healthy moles should be smaller than the size of a pencil eraser. If it is larger, it could be a sign of melanoma.

A mole that is darker than the other moles could also be a warning sign.

E = evolving

Any change of a mole or other spot should be evaluated by an expert. This includes everything from getting larger, forming a different shape or color, or becoming elevated off the skin. Itching, bleeding, or crusting could also be an indication of melanoma.

The Ugly Duckling

Knowing the specific details to watch out for is helpful for finding suspect moles, but another method can be useful as well — the idea of looking out for a mole that doesn't look like all the others.

The "ugly duckling" mole could be different in several ways, including bigger, smaller, lighter, or darker than the other moles around it. It could also be alone with no other moles nearby.

If in doubt about a mole or any other growth on your skin, it's important to get a medical expert's professional diagnosis and, if needed, a treatment plan in place as quickly as possible.

Dr. Fischer can provide state-of-the-art care whether you have a suspicious mole or have already been diagnosed with skin cancer. Click to book an appointment or call the office today at 310-807-2688.