Non saphenous veins
other types of varicoses veins: accessory branches or tributaries
These varicose veins can either be branches of the saphenous veins, or have no connection with the saphenous veins. They vary in size, but can become very large.
Sometimes, only a short segment is dilated: it is called an ampulla dilatation that could lead to a higher risk of rupture or superficial venous thrombosis (thrombophlebitis).