The Vascular Birthmarks Foundation

Dr. Linda Rozell-Shannon, PhD President and Founder

What is it?

Lymphatic malformations are a result of defective growth of lymphatic vessels during fetal development. These defective lymphatic vessels create a back up of lymphatic fluid creating swollen vessels, tissues, and/or bones that create a visible “lump”, “bump” or “bubbles” on the surface of the skin.
  • Defective growth of lymphatic vessels before birth
  • Collection of cysts or enlarged lymphatic vessels
  • Can appear anywhere on body: most common on neck or armpit
  • Considered to be due to a genetic mutation