CTICasesUrinothorax Post-Renal Ablation
Imaging findings
CT and delayed contrast scans show a persistent right pleural effusion that accumulates rapidly. Delayed scans confirm a collecting system-pleural fistula with contrast leaking from the kidney into the pleural space, complicating a prior renal radiofrequency ablation (RFA). Creatinine in the fluid was elevated (50 mg/dL).
Key takeaways
Urinothorax is the accumulation of urine in the pleural space. It can occur as a delayed complication of renal ablation or trauma due to a fistula between the renal collecting system and the pleural cavity.
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