Comparison of whole-body DW-MRI with 2-[ 18 F]FDG PET for staging and treatment monitoring of children with Langerhans cell histiocytosis.

F]FDG PET remains an approved radiological examination for assessing metabolically active disease, WB DW-MRI could be considered as an alternative approach without radiation exposure. The combination of both modalities might have advantages over either approach alone.