Diuretic 68Ga DOTANOC PET/CT in imaging of bladder paraganglioma.

Urinary bladder paragangliomas are exceedingly rare tumors. A 22-year-old woman with bladder paraganglioma underwent Ga DOTANOC PET/CT for proper localization of the primary tumor and to rule out locoregional and distant metastases. Ga DOTANOC-avid bladder mass was detected with no other abnormal site of radiotracer uptake elsewhere. Although radioactive urine can mask urinary paragangliomas, diuretic method can aid tumor detection by Ga DOTANOC PET/CT.