Can nevus spillus tend to turn cancerous?

Question

Hello doctor,

I have speckled lentiginous nevi, also known as nevus spilus. I have had it since I was a baby. I do not know if it is congenital. Ever since I read online that they can transform dangerous, I do not feel comfortable in my own skin. I know the nevus spilus is alright right now. Its border has not changed at all. I am not worried about it right now. But, I am scared if it can happen in the future. Should I be worried? Some of my relatives have it too, but there is no family history of skin cancer. I know that if it changes in any way, I have to go for a skin biopsy. But, should I be worried about it is what I want to know.

Thanks.

Answer 1

Hello,

Welcome to icliniq.com.

I can understand your concern.

I have seen your query and examined your picture (attachment removed to protect patient identity). From your descriptions and given image, it does seem you have nevus spilus. There is nothing to worry about. The nevus spilus is present in 3 % of fair-skinned people. It is a benign lesion that may develop more spotted elements over time. Once this lesion formed, it is presumed to persist throughout life. Rarely, this nevus may be present at birth, and more commonly the lesion becomes evident during infancy or early childhood. If you find a sudden increase in size, differential pigmentation, bleeding, irregular borders, etc., then you may go for a skin biopsy. This one is least likely to shows these changes because malignant melanoma very rarely arises from these lesions.

I hope this information will help you.

Thanks.