Prominent Bone Marrow Infiltration in the Appendicular Skeleton in a B-cell Acute Lymphoblastic Leukemia Patient Demonstrated by FDG PET-MRI

Leukemia spread in the bone marrow typically is greater in the axial skeleton than in the appendicular skeleton. We report an unusual pattern of FDG-avid bone marrow infiltration that is more prominent in the appendicular skeleton than the axial skeleton in a pediatric patient with B-cell acute lymphoblastic leukemia.