What Does Atypical Melanocytic Hyperplasia Mean?

What does "Lentiginous junctional nevus with mild atypical melanocytic hyperplasia extending to margins" mean? Does that just mean having a mildly atypical mole? Thank you.

Doctor Answers 3

Atypical lentiginous pigmentation

In general, this means that the lesion is abnormal without being cancerous. However, it has to be used in a clinical context. So if your doctor took a small biopsy of a large spot, there may still be an issue and additional biopsies may be needed. Best thing to do is to talk to the treating dermatologist.

New York Dermatologist

Treatment for mildly atypical moles

Yes, this does mean you have a mildly atypical mole. The fact that it is "junctional" also means that it is quite superficial which is good news. Since it extends to the margins you need to have the remainder of it removed. Depending upon its location, I will frequently do a deeper and wider shave excision to remove what is left which can result in a much better scar than having the area fully excised. I recommend you be treated by a board certified dermatologist to have this option for treatment as well as for careful follow-up of the area. I also recommend returning for total skin examinations every 6 months for the next few years.

Mitchell Schwartz, MD
South Burlington Dermatologic Surgeon
4.7 out of 5 stars 12 reviews


Melanotic hyperplasia means there is an increase in the number of malanocytes (The cells that contain the pigment , melanin). It is not as atypical mole.

If the melanocytic hyperplasia extends to the margin, it should be excised, just for safety. It also means you need a full examination of your moles on regular basis, at least oce a year.

Samir Shureih, MD
Baltimore Plastic Surgeon
4.2 out of 5 stars 7 reviews

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.