Focal myocardial uptake in a patient with carcinoid tumor by indium-111-pentetreotide on SPECT/CT.

Abstract

We present a case of a 44 year old man with flushing, diarrhea and markedly elevated 24 hour urinary 5-HIAA level, who was referred for an indium-111 pentetreotide study, after the excision of a carcinoid tumor in the terminal ileum. Scan findings revealed focal uptake in the myocardium and liver, suspicious for metastases. Subsequent transthoracic echocardiogram failed to demonstrate a cardiac lesion. Previously, our group has unequivocally demonstrated the usefulness of software fusion of SPECT and CT imaging in the evaluation of a carcinoid metastasizing to the myocardium. This case illustrates that hardware SPECT/CT fusion imaging utilizing indium-111 pentetreotide to evaluate metastatic carcinoid tumors can be useful. In addition, the echocardiogram can yield false negative results, because of a smaller lesion size and the influence of an operator-dependent factor.

• Authors: S Mahmood, S R Martínez de Llano, R K Grewal
• Journal: Revista espanola de medicina nuclear (Rev Esp Med Nucl) 2008 Sep-Oct Vol. 27 Issue 5 Pg. 355-7 ISSN: 0212-6982 [Print] Spain
• PMID: 18817665 (Publication Type: Case Reports, Journal Article)

Chemical References

• Indium Radioisotopes
• Somatostatin
• pentetreotide

Topics

• Adult
• Carcinoid Heart Disease (diagnostic imaging)
• Carcinoid Tumor (diagnostic imaging)
• Heart (diagnostic imaging)
• Humans
• Indium Radioisotopes
• Male
• Radionuclide Imaging
• Somatostatin (analogs & derivatives)