Vascular malformations. These are hereditary malformations that include capillary, venous, arterial, or lymphatic irregularities. There are usually consolidated malformations that make up different types of vessels. Instances of vascular malformations consist of port-wine spots (capillary malformation), cystic hygroma (lymphatic malformation), as well as venous malformations. Vascular malformations exist at birth and also expand proportionately with the kid. Some vascular malformations may not manifest themselves till teenage years or their adult years. These figures represent venous malformations on the hand as well as foot.