Orris

Explain KTS genetic disease in shortest explanation possible

Klippel-Trenaunay Syndrome (KTS) is a rare congenital disorder caused by mutations in the PIK3CA gene (somatic mosaic), leading to overgrowth of blood and lymphatic vessels.
Three hallmark features:
  1. Port-wine stain - flat, red/purple skin birthmark from abnormal capillaries
  2. Varicose veins / venous malformations - abnormal, enlarged veins (usually one limb)
  3. Soft tissue & bone hypertrophy - overgrowth of one limb (leg most common)
It is not inherited - the mutation happens randomly during embryonic development. There is no cure; management is symptomatic (compression garments, laser therapy, sclerotherapy, surgery).
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