Post-traumatic paraureteral urinoma in a cat

Area of Science:

• Veterinary Medicine
• Diagnostic Imaging
• Surgical Procedures

Background:

• Retroperitoneal urinomas are rare in veterinary medicine, often resulting from trauma.
• Traumatic injuries can lead to urine leakage and the formation of uriniferous pseudocysts.
• Early diagnosis and intervention are crucial for managing such conditions in animals.

Observation:

• A domestic shorthair cat presented with sublumbar swelling two weeks post-road traffic accident.
• Plain radiography showed a soft tissue opacity in the left retroperitoneal space.
• Intravenous urography and fine-needle aspiration were employed for diagnosis.

Findings:

• Diagnostic imaging revealed contrast pooling in the dilated left renal pelvis and proximal ureter.
• Aspirated fluid from the retroperitoneal space showed a creatinine level five times that of serum.
• These findings confirmed the diagnosis of a retroperitoneal urinoma.

Implications:

• Surgical drainage, nephrectomy, and omentalization of the pseudocyst led to a curative outcome.
• This case highlights the importance of diagnostic imaging and aspiration in identifying urinomas.
• Effective management strategies can be established for traumatic urinary tract injuries in felines.