False-Positive Diagnosis of a Pheochromocytoma With I-123 Metaiodobenzylguanidine

The rare case of a false-positive scintiscan with I-123 labelled metaiodobenzylguanidine (MIBG) in a patient with suspected pheochromocytoma is reported. Focal accumulation of the tracer in the upper right abdomen, primarily thought to represent a right-sided pheochromocytoma, was subsequently prove...

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Bibliographic Details
Published in:Clinical nuclear medicine 1994-03, Vol.19 (3), p.221-223
Main Authors: BATHMANN, JENS, NEUMANN, HARTMUT P.H, SIGMUND, GÜNTHER, MOSER, ERNST
Format: Article
Language:English
Subjects:
3-Iodobenzylguanidine
Adrenal Gland Neoplasms - diagnostic imaging
Adult
Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
Biological and medical sciences
Emergency and intensive care: metabolism and nutrition disorders. Enteral and parenteral nutrition
False Positive Reactions
Female
Humans
Intensive care medicine
Iodine Radioisotopes
Iodobenzenes
Kidney Pelvis - abnormalities
Kidney Pelvis - diagnostic imaging
Magnetic Resonance Imaging
Medical sciences
Pheochromocytoma - diagnostic imaging
Radionuclide Imaging
Sensitivity and Specificity
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Summary:The rare case of a false-positive scintiscan with I-123 labelled metaiodobenzylguanidine (MIBG) in a patient with suspected pheochromocytoma is reported. Focal accumulation of the tracer in the upper right abdomen, primarily thought to represent a right-sided pheochromocytoma, was subsequently proven to be caused by an ampullary renal pelvis. In cases of unexplained MIBG accumulation the possibility of prolonged retention of the tracer, because of an abnormality of the renal pelvis, should be considered and excluded by ultrasound.
ISSN:0363-9762
1536-0229
DOI:10.1097/00003072-199403000-00012