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atypical mole

My son had a mole shaved 1 year ago.  The mole was sent in and came back just fine.  The mole then grew back, was removed with a punch procedure.  This time the results came back as atypical noncancerous.  The said that he needed another procedure to have it removed more thoroughly (excised?).  I am wondering if it is safe to hold off this procedure for about 10 weeks or is it something that needs to be done immediately?
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563773 tn?1374246539
Yes I agree with your son’s dermatologist that since the mole has come out as atypical non cancerous, hence it needs to be explored more and any melanoma needs to be ruled out. Another possibility that needs to be ruled out is of a recurrent nevus. Recurrent nevus is a melantic skin lesion which clinically resembles a superficial spreading melanoma at the site of a recent shave removal of a nevus. What happens is that melanocytes left behind in the wound regrow in an abnormal pattern. This is accompanied by scarring, inflammation, and blood vessel changes and this both the clinical and histologic impression of a melanoma.

I suggest you to get a punch biopsy skin done to confirm the diagnosis. I hope it helps. Take care and regards.

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