Feline urinary tract ruptures diagnosis using intraluminal contrast‐enhanced ultrasonography

Urinary tract ruptures in cats are life threatening and may be difficult to diagnose using conventional imaging. Contrast‐enhanced ultrasonography (CEUS) is a minimally invasive technique for evaluating urinary tract injuries. This case series describes the diagnosis of urinary tract ruptures in two cats using intraluminal CEUS. The first case involved a 6‐month‐old male cat with dysuria, pollakiuria and haematuria. Following ultrasound‐guided cystocentesis, free abdominal fluid was identified, and bladder rupture was confirmed by CEUS. The second case involved a 1‐year‐old neutered male cat with a history of urethral obstruction and persistent clinical signs after initial catheterisation. Intraluminal CEUS performed through a urinary catheter identified a partial urethral rupture, characterised by contrast leakage into the abdominal cavity and through a fistulous tract extending to the pelvic limb region. These cases demonstrate the diagnostic value and clinical applicability of intraluminal CEUS for identifying lower urinary tract ruptures in critically ill feline patients.