Confocal Reflectance Microscopy Findings in Juvenile Xanthogranuloma: Report of 2 Cases

Juvenile xanthogranuloma (JXG) is the most common type of non-Langerhans cell histiocytosis and is characterized by a benign proliferation of dermal dendrocytes. We report two children diagnosed with JXG with reflectance confocal microscopy (RCM), a noninvasive imaging technology that allows for multi-layer visualization of the skin. This report demonstrates the emerging role of RCM as a painless diagnostic aid for JXG and other cutaneous diseases in children.