\"Noonan Syndrome\" \u2013\u00a0What Is It?<\/h2><\/div>
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Noonan syndrome is a hereditary disorder of physical development (see below), which is also associated with learning disorders and a slightly increased risk of cancer. There are various special forms of Noonan syndrome or Noonan syndrome-like disorders:<\/p>\n
Noonan syndrome with multiple lentigines:<\/strong> Besides the typical Noonan syndrome changes, dark spots (lentigines) are found on the skin. Those affected are often hard of hearing and typically have particular heart defects (hypertrophic cardiomyopathy).<\/p>\n
Noonan syndrome-like disorder with loose anagen hair:<\/strong> Those affected have changes typical of Noonan syndrome but are slightly darker pigmented and have loose hair.<\/p>\n
CBL syndrome:<\/strong> In this Noonan syndrome-like disease, the typical Noonan changes are mild and easily overlooked. Patients can develop vascular inflammation (vasculitis) and have a high risk of developing a malignant blood disease in childhood (juvenile myelomonocytic leukemia).<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>
Overview of the Chapters on This Page:<\/h4><\/div><\/div><\/div>
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Noonan Syndrome \u2013 What Is It? (This Section)<\/div><\/li><\/ul><\/div><\/div>