Abbreviation Full term
LCH Langerhans cell histiocytosis
JXG Juvenile xanthogranuloma
ALL Acute lymphoblastic leukemia
HLH Hemophagocytic lymphohistiocytosis
MEK Mitogen-activated protein kinase kinase
GVHD Graft-versus-host disease
COG Children Oncology Group
WHO World Health Organization
ICC International consensus classification