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Summary
Uriniferous perirenal pseudocysts, or encapsulated urine collections, present as a distinct mass on imaging. Early radiological diagnosis is crucial to prevent irreversible kidney damage from delayed recognition.
Area of Science:
- Nephrology
- Radiology
- Urology
Background:
- Chronic encapsulated extravasation of urine, termed uriniferous perirenal pseudocyst, is a rare condition.
- It results from urine leakage and collection within the renal fascia.
Observation:
- Radiographic findings include an elliptical soft-tissue mass.
- Characteristic displacement of renal structures (lower pole, ureter) and obstructive hydronephrosis are observed.
Findings:
- The pseudocyst causes inferomedial flank orientation with displacement of the lower renal pole.
- Medial ureteral displacement and hydronephrosis indicate urine collection and obstruction.
Implications:
- Delayed clinical recognition, often weeks after trauma, necessitates prompt radiological diagnosis.
- Early imaging is vital to prevent permanent kidney damage from untreated urine extravasation.