Atypical Mole vs. Melanoma: How to tell the difference
People often think of an atypical mole as melanoma, so it is necessary to learn more about these so that you won’t get confused between them. This guide will clear up all your doubts, so stay with us until the end.
If you are not sure whether a mole is a sign of melanoma or just an atypical mole, it is necessary to go for a skin specialist’s advice. But here are some things you can clear up at first. A melanoma diagnosis is the best option for confirmation.
What indicates an Atypical Mole or Melanoma?
Differentiating between the two can be challenging. The ABCDE rule is the best way to detect the atypical mole or melanoma:
- A: Assymetry
One-half of the mole does not match the other. It creates an irregular shape.
- B: Border
Borders might be ragged, fuzzy, notched or blurred.
- C: Colour
Both often have mixed colours, including different shades of brown, pink or tan.
- D: Diameter
These are generally larger than ordinary moles, often greater than 6mm. However, melanoma may be smaller when first detected.
- E: Evolution
Appearance changes over time. Atypical moles may evolve more slowly than melanoma. This may show noticeable changes over weeks or months.
Learn more about treatment options, consulting a specialist and more.
Atypical Moles Vs. Melanoma: Key Differences
| Aspects | Melanoma | Atypical Moles |
| Causes | It is a serious form of skin cancer that develops in the melanocytes, the cells that produce pigment. Caused by genetic mutations that lead to the uncontrolled division of cancerous cells. | These are benign (non-cancerous) moles that have an abnormal appearance, such as irregular borders, asymmetry, or a mix of colours. Caused by a combination of genetic predisposition and environmental factors, particularly sun exposure. |
| Risks | Melanoma is a type of skin cancer that can spread rapidly to other parts of the body if not caught early. Melanoma risk factors include sun exposure, having fair skin that burns easily, a large number of moles or atypical moles, and a personal or family history of melanoma. Other factors are a weakened immune system, certain genetic conditions. | Risk factors for atypical moles include having fair skin, light hair and eyes, a history of excessive sun exposure or sunburns, and a family history of atypical moles or skin cancer. Having a large number of moles or many moles that appear different from others also increases risk. |
| Diagnosis | Melanoma requires a biopsy. A biopsy for melanoma includes removing the suspicious tissue for examination, which can be done through methods like excisional biopsy, punch biopsy, or shave biopsy. | Often requires a biopsy for definitive diagnosis, as visual similarities to melanoma can be strong. |
| Treatment | For melanoma treatment, include surgery to remove the tumour. For more advanced stages, systemic treatments like immunotherapy, targeted therapy, chemotherapy, and radiation therapy are used. The best approach depends on the cancer’s stage, genetic makeup, and the individual’s overall health. | Treatment for atypical moles depends on whether the mole is benign or malignant. Benign atypical moles may be managed with observation and frequent monitoring, while suspicious or recurring moles often require removal for biopsy. For confirmed melanoma following an atypical mole removal, a more extensive surgical option, and potentially lymph node removal, may be necessary. |
FAQ: Atypical Moles vs. Melanoma
Q1. Is wide excision for melanoma or an atypical mole?
Wide excision is a standard treatment for melanoma and is also used for some atypical moles if melanoma is suspected. For confirmed melanoma, it’s a standard treatment that involves removing the cancerous lesion along with a margin of healthy tissue to prevent recurrence. For atypical moles, wide excision may be needed if the mole is severely atypical to ensure its complete removal.
Q2. What is Mohs surgery for melanoma?
Mohs surgery is also known as Mohs micrographic surgery. It might be an option for some very early-stage melanomas. It is effective for areas where a wide excision would be hard to perform, such as the face or the ears.
Q3. How to tell if a mole is cancerous?
Perform the ABCDE rule to detect if the mole is cancerous. Asymmetry, border, colour, diameter and evolution of the mole tell if the mole is cause for concern or not. Regular self-exams ensure you are on the right track, and professional exams ensure you are cancer-free.
Final Thoughts
At SCCQ, melanoma diagnosis is done by the experts to ensure you are getting a cancer-free life. If the diagnosis comes positive, early treatment can increase sucess rates. Melanoma and atypical moles will be checked thoroughly to determine if they are cause for concern. Visit for expert consultation today and book your appointment with the skin specialist.
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