123I‐metaiodobenzylguanidine scintigraphy of ectopic intracranial retinoblastoma

Abstract
Radioiodinated metaiodobenzylguanidine (MIBG) has been used for diagnostic purposes to image neural crest tumors. We report the uptake of 123I MIBG in a child with ectopic intracranial retinoblastoma. It is felt that 123I MIBG scintigraphy may have a role in detecting occult metastatic disease in these patients.