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Klippel-Trenaunay syndrome

  • Definition

    Klippel-Trenaunay syndrome is a rare condition that is present at birth. The syndrome usually involves port wine stains, excess growth of bones and soft tissue, and varicose veins.


    Alternative Names

    Klippel-Trenaunay-Weber syndrome; KTS; Angio-osteohypertrophy; Nevus varicosus osteohypertrophicus syndrome; Hemangiectasia hypertrophicans; Nevus verucosus hypertrophicans


    Causes, incidence, and risk factors

    Most cases of Klippel-Trenaunay syndrome occur for no apparent reason. However, a few cases are thought to be passed down through families (inherited), possibly as an autosomal dominant trait.