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Craniofacial Program

Vascular Malformations

Vascular malformations can be classified based on their channel type (how they are supplied with blood: including veins, arteries, and lymphatic vessels) and flow characteristics (how fast the blood flows to the area). For example, slow-flow malformations include capillary, lymphatic, and venous malformations. Fast-flow malformations include arterial and arteriovenous malformations.

The biggest difference between vascular malformations and hemangiomas is that whereas hemangiomas grow rapidly and then begin to shrink slowly, vascular malformations do not shrink. In fact, because they are the result of developmental errors, vascular malformations carry the potential for disfigurement, skeletal overgrowth, and extensive bleeding during surgical excision. They often expand as the child grows, or as the result of trauma or infection.

There are five types of vascular malformations. Click on one below to learn more.

  • Capillary Malformations
  • Lymphatic Malformations
  • Venous Malformations
  • Arteriovenous Malformations
  • Combined Malformations