Definition malformations

Vascular malformations

Vascular malformations are present at birth. They never proliferate and never involute. Instead, they increase in size steadily as the patient grows and they do so by an increase in the size of the vessels those make up the malformation. Vascular malformations are further classified according to the type of vessel that makes up the lesion.

The major types of vascular malformations are:

• Venous
• Venular (port wine stains)
• Arterio-venous
• Lymphatic malformations.

Mixed Malformations

• Venous Lymphatic capillary (Klippell Trenauney Syndrome: KTS)
• Arterio- venous capillary malformation (Parkes Weber Syndrome)