Bonnevie-Ullrich Syndrome

**Semantic type:** Congenital Abnormality|Disease or Syndrome

**Definition:** A genetic syndrome which occurs in females. It is caused by the inheritance of only one complete X chromosome (45, X). Clinical signs of the symmetrical form are identical to those of Turner syndrome and include bilateral webbing of the neck and edema of the extremities. Clinical characteristics include decreased stature and under-developed sexual organs. Patients usually have a normal life expectancy.