Multifocal Urinary Bladder Paragangliomas With Negative 68Ga-DOTATATE Uptake and Positive 123I-MIBG Uptake

Clin Nucl Med. 2020 Mar;45(3):e156-e157. doi: 10.1097/RLU.0000000000002853.

Abstract

We report a case of an adult male patient with multifocal urinary bladder paragangliomas, which were negative on Ga-DOTATATE PET/CT scan, but positive on I-MIBG SPECT/CT scan. While the Ga-DOTA analog PET/CT exhibits superior performance in diagnosis and staging of pheochromocytoma and paraganglioma, our case demonstrates negative somatostatin receptor expression in this rare entity and indicates that I-MIBG SPECT/CT still plays a vital role in characterization of bladder paraganglioma.

Publication types

  • Case Reports

MeSH terms

  • 3-Iodobenzylguanidine / metabolism*
  • Biological Transport
  • Humans
  • Male
  • Middle Aged
  • Organometallic Compounds / metabolism*
  • Paraganglioma / diagnosis*
  • Paraganglioma / metabolism*
  • Positron Emission Tomography Computed Tomography*
  • Receptors, Somatostatin / metabolism
  • Urinary Bladder Neoplasms / diagnostic imaging*
  • Urinary Bladder Neoplasms / metabolism*

Substances

  • Organometallic Compounds
  • Receptors, Somatostatin
  • 3-Iodobenzylguanidine
  • gallium Ga 68 dotatate