MIBG Case 5 Answers

1) What other radiopharmaceutical could have been used?

111-indium octreotide could have been used. Although octreotide is a more expensive radiopharmaceutical, it is more sensitive for detecting carcinoid tumours than MIBG. Having said that, very occasionally, a carcinoid tumour will take up MIBG but not octreotide.

2) Why do carcinoids take up the tracer?

Many carcinoids contain neurosecretory granules and take up MIBG into these.

3) Is there any extrahepatic disease

There are multiple hepatic metastases but no evidence of extrahepatic uptake.

 

Return to question

Return to home page

The text is entirely the opinion of the author and does not necessarily reflect that of RUH NHS Trust or the Bristol Radiology Training Scheme. Website content devised by Paul McCoubrie.