Fig. 1.

Two different types of valvular incompetence occur in primary varicose veins associated with two different types of clinical presentation. A, trunk type axial incompetence, begins at the junctional valve and progressively advances towards the medial malleolus in case of the greater or lateral malleolus in case of the smaller saphenous vein. B, perforator type incompetence at one or more typical locations is frequently associated with segmental axial incompetence of draining superfascial tributaries or trunk veins.