What Is Klippel-Trenaunay-Weber Syndrome?

Klippel-Trenaunay syndrome is congenital venous malformation limb hypertrophy syndrome, which is a rare and complicated congenital peripheral vascular disease. The disease is characterized by developmental deformities in the deep and superficial veins of the limbs, cutaneous capillary hemangiomas, cavernous hemangioma, and excessive growth of bones and soft tissues. The disease occurs in children and adolescents, and the symptoms gradually worsen, which seriously affects the quality of life of patients.