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Noonan syndrome

Background

Noonan syndrome is a genetic condition which is very variable in degree and so mildly affected individuals may remain undiagnosed.

There is an overlap between Noonan syndrome and LEOPARD syndrome. Some cases of LEOPARD syndrome may be caused by the same gene as Noonan syndrome. The term LEOPARD stands for Lentignes (freckles), ECG (minor abnormalities in the electrical activity of the heart), Ocular hypertelorisrn (widely spaced eyes), Pulmonary stenosis, Abnormalities of the male genitalia, Retardation of growth, Deafness.

What are the symptoms? View What are the symptoms?

Medical text written November 1991 by Contact a Family. Approved November 1991 by Professor M Patton and Dr J E Wraith, Consultant Paediatrician, Royal Manchester Children's Hospital, Manchester, UK. Last updated October 2004 by Professor Michael Patton, Professor of Medical Genetics, St George's Hospital Medical School, London, UK.

 

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