3. c) Upon baseline disease assessment, all subjects must have at least 1 measurable, evaluable, site of disease that either has never been irradiated or has been previously irradiated and has since demonstrated progression based on COG response criteria. Children's Oncology Group response criteria include: 1) Complete response (CR) is defined as no measureable disease; 2) partial response (PR) as >50% decrease in longest X widest perpendicular diameter of target lesions with no increase in any lesions and no new lesions; 3) minor response (MR) as >25%<50% decrease in target lesions with no increase in any lesion and no new lesions; 4) stable disease as <25% increase or decrease in any target lesion and no new lesions; 5) Progressive disease (PD) as an increase >25% in any measureable lesion or the presence of any new lesion was considered progressive disease (PD). Response will be assessed based on intent to treat for all subjects who receive at least one dose of 90Y-DOTA-tyr3-Octreotide.