Sclerosant is to denude the endothelial cell through the vascular wall and precipitate its protoplasm then bring about fractures to the extent of The inner elastic lamina. Platelet aggregation on the denuded surface then embolizes the vessel from your periphery to the middle (43,44). Vascular anomalies are birthmarks or growths https://www.sgvascularctr.com/service/vascular-malformations/