As a result of superficial valve incompetence, high pressure is transmitted to small subcutaneous veins, which become dilated tortuous clusters of varicose veins (Figure 1B). Although valve reflux ...

Nevertheless, a noticeably larger HVA was observed in the three cases mentioned above than that in the dogs of type I without anomalies. Additionally, in cases where the median thyroid vein was ...

It occurs when veins in your pelvis weaken and become enlarged, preventing blood from circulating back to the heart efficiently. These enlarged veins, called varices, allow blood to pool in the ...

If you have your pupils dilated for an eye exam, they may stay dilated for several hours. Your eye health provider dilates your pupils so they can get a clear view of the internal structures of your ...