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FIGURE 1. 131I-MIBG and 111In-DTPA-octreotide images of patient with neuroblastoma. (A) 131I-MIBG images at 48 h demonstrate diffuse abnormal bone marrow uptake in proximal upper and lower extremities and in spine. (B) 111In-DTPA-octreotide images at 24 h show abnormal bone marrow uptake in a similar distribution. 111In-DTPA-octreotide also shows subtle focus at superior aspect of right lobe of liver, which is not appreciated on MIBG scan (arrowhead). Bone marrow disease was confirmed with biopsy. CT of the abdomen showed multiple liver lesions.