Case Reports of Spitz Nevus with a Halo Phenomenon
- Author:
Myoung Eun CHOI
1
;
Woo Jin LEE
;
Sung Eun CHANG
;
Jee Ho CHOI
;
Mi Woo LEE
Author Information
1. rtment of Dermatology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
- Publication Type:Case Report
- From:Korean Journal of Dermatology
2020;58(3):207-211
- CountryRepublic of Korea
-
Abstract:
Halo nevus clinically presents as a nevus with a surrounding ring of depigmentation that histopathologically demonstrates a dense lymphocytic reaction to the melanocytic component of the epidermis. While melanocytic nevi with halo phenomena are common, a halo reaction is uncommon in Spitz nevus. When a halo reaction develops around a Spitz nevus, differential diagnosis from melanoma arising from pre-existing nevus is difficult due to the presence of dense inflammatory components. A halo reaction itself can increase the cytologic atypia of melanocytes and can obscure nest maturation. Herein, we report rare cases of Spitz nevus combined with a halo reaction. It is important to note that the halo phenomenon can occur without a clinically evident white patch and that the architectural features of the nevus components can be used to distinguish Spitz nevus from malignant melanoma.
