Journal
CLINICAL NUCLEAR MEDICINE
Volume 35, Issue 9, Pages 743-745Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/RLU.0b013e3181ea3502
Keywords
neuroblastoma; MIBG; false positive; pneumonia
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A 32-month-old female child with a history of stage IV favorable biology neuroblastoma with a 123-I MIBG (metaiodobenzylguanidine scan) avid adrenal mass, with retroperitoneal nodal extension and bony metastasis, was in complete remission after intense multimodal therapy. Seventeen months after diagnosis a surveillance 123-I MIBG scan showed abnormal tracer uptake in the midzone of the right thorax. Chest x-ray and CT scan confirmed right upper lobe consolidation corresponding to the tracer uptake. Chest x-ray after antibiotics showed resolution of the abnormality. 123-I MIBG scan 3 months later showed no abnormal uptake. False-positive MIBG uptake in pneumonia has not been previously reported.
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