What is the normal diameter of scrotal veins on ultrasound?

What is the normal diameter of scrotal veins on ultrasound?

• A. 0.5 to 1.5 mm
• B. 1.5 to 3.0 mm
• C. 3.0 to 4.0 mm
• D. 0.1 to 0.5 mm

Answer: (A)

Normal scrotal veins, the pampiniform plexus, are small on ultrasound. They typically measure about 0.5 to 1.5 mm in diameter. Veins larger than roughly 2 mm, especially with a Valsalva maneuver, suggest a varicocele. So this range best represents normal caliber. Diameters in the 1.5–3.0 mm range would be considered enlarged and may indicate dilation, while 0.1–0.5 mm is unusually small for scrotal veins.

Normal scrotal veins, the pampiniform plexus, are small on ultrasound. They typically measure about 0.5 to 1.5 mm in diameter. Veins larger than roughly 2 mm, especially with a Valsalva maneuver, suggest a varicocele. So this range best represents normal caliber. Diameters in the 1.5–3.0 mm range would be considered enlarged and may indicate dilation, while 0.1–0.5 mm is unusually small for scrotal veins.