Presentation
Renal failure and low back pain
Patient Data
Age: 80 years
Gender: Male
From the case:
Urinary retention - sacral nerve root infiltration
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No IV contrast used as eGFR
Grossly distended bladder with large infiltrating mass involving the right sacrum and sacral nerve roots. Note atrophic right kidney (due to renal artery stenosis) and markedly hydronephrotic left kidney due to "back pressure" from chronic bladder distension.
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