A new dermoscopic sign in juvenile xanthogranuloma.

Abstract

Juvenile xanthogranuloma (JX) is clinically and histologically characterized by different
evolutionary stages, from an initial phase of histiocytic proliferation to that of xanthomization
and then of spontaneous regression. In children JX should be differentiated from Spitz
nevus, especially during the phase preceding xanthomization. Dermoscopy can help the
differential diagnosis. In this study we examined the dermoscopy findings of 13 cases of
JX: the yellow color is the most characteristic finding, but it presents polymorphic aspects
related to the different developmental stage. In particular, we underline the presence of a
whitish regular network, so far not reported in the literature.