Halo Melanoma

In one study of 475 melanomas, only 2 (0.4%) showed an encircling halo [Arch Dermatol. 2006;142(12):1627-1632.]. Both showed significant regression histologically. In both of those cases and in the one above, the halo was more irregular than in a halo nevus.

Additional Pictures

Side by side comparison of a halo melanoma (left) and a halo nevus (right). Note how the halo on the left is much more irregular and the pigmented lesion atypical as well.
Halo Melanoma Halo Nevus


Clinical and Experimental Dermatology 2009;34;747–750

JAAD 2012;67;582–586

It is not the intention of RegionalDerm.com to provide specific medical advice, diagnosis or treatment. RegionalDerm.com only intends to provide users with information regarding various medical conditions for educational purposes and will not provide specific medical advice. Information on RegionalDerm.com is not intended as a substitute for seeking medical treatment and you should always seek the advice of a qualified healthcare provider for diagnosis and for answers to your individual questions. Information contained on RegionalDerm.com should never cause you to disregard professional medical advice or delay seeking treatment. If you live in the United States and believe you are having a medical emergency call 911 immediately.