While many medical conditions are defined by one dominant malady, this bizarre medical condition features a whole bouquet of peculiar symptoms.
Klippel-Trenaunay syndrome(KTS) is a mysterious medical condition that has three main effects: a port-wine stain that forms on the skin, varicose veins, and enlargement of a limb or other body part. Sometimes, a portion of a person's torso or a single buttock is enlarged; other times, fingers on one hand are over- (or under-) sized, or the person's entire head is larger or smaller than usual.
It's not known what causes KTS syndrome. It's not even clear if it's a genetic condition, although some evidence does seem to indicate that KTS may run in families. One theory is that KTS is the result of abnormalities that occur in developing blood vessels. Another theory is that it's the result of abnormal pressures on the fetus in the womb, causing an increase in blood flow to certain areas and a decrease in others. The truth is that not much is understood about this bizarre medical condition.
The good news is that most people who are born with KTS are able to live normal lives, as long as personal mobility isn't greatly affected by the difference in leg length (the most common limb affected). However, in some cases, ulcers, infections or complications from misshaped veins do result in pain and necessitate increased medical attention.