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20 Diseases You've Probably Never Heard Of


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Parry Romberg Syndrome
Parry Romberg Syndrome causes skin and soft tissues on half of the face to shrink.
Parry Romberg Syndrome causes skin and soft tissues on half of the face to shrink.

In this acquired (not inherited) disorder, skin and soft tissues on half of the face begin to shrink (atrophy), leading to a non-symetrical appearance. Typically, symptoms first appear before age 20, and there is great variation in the degree of severity. The cause of the syndrome -- also known as HFA, progressive facial hemiatrophy, PRS or Romberg syndrome - is unknown.

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