Common venous renal trunk in two dogs: Multidetector computed tomographic imaging findings

Area of Science:

• Veterinary Anatomy
• Comparative Anatomy
• Canine Renal Vasculature

Background:

• Renal vein branching patterns in dogs are typically consistent, with limited documented variations.
• Understanding normal anatomy is essential for diagnosing and treating conditions affecting the canine abdomen.

Observation:

• This study details two distinct and uncommon renal vein anomalies in canine subjects.
• Dog 1 exhibited a T-shape pattern where a single renal trunk drained both kidneys into the caudal vena cava.
• Dog 2 presented a Y-shape pattern with a common venous trunk branching from the azygos-caudal vena cava.

Findings:

• The report documents rare T-shape and Y-shape renal venous drainage anomalies in two dogs.
• These anomalies involve unusual common renal trunks and branching patterns from the caudal vena cava.
• The observed variations highlight the potential for significant deviations from typical canine renal venous anatomy.

Implications:

• Knowledge of these rare renal vein variations is vital for accurate interpretation of abdominal imaging in dogs.
• Awareness of these anatomical anomalies can aid surgeons in planning procedures involving canine abdominal vasculature.
• This study contributes to a more comprehensive understanding of canine vascular anatomy, improving diagnostic and surgical outcomes.