Upper clavicular and cardiac meta-[123I]iodobenzylguanidine uptake in children.

In order to clarify some of the particularities and pitfalls of the MIBG thoracic scan, we report our experience with 5 children with Stage III or IV neuroblastoma who presented equivocal scans. The physiological thoracic distribution of MIBG in children differs from that in adults and has to be taken in account in the accurate interpretation of the scans.