Histiocytosis - Langerhans cell histiocytosis (LCH), Erdheim-Chester disease (ECD), Rosai-Dorfman disease (RDD) Comparison of Features by Age, Skin involvement, Bone involvement, Lung involvement, Lymph node involvement, Imaging, Histology and Treatment By Dr. Clara Richard de Vesvrotte via Dr. Benjamin Terrier @TerrierBen #Histiocytosis #diagnosis #comparison #table #features #management #LCH #ECD #RDD