[Radiological anomalies in the Noonan syndrome (author's transl)].

In the Noonan syndrome various anomalies can be demonstrated radiologically. Of particular interest are cardiovascular lesions, such as atypical pulmonary stenosis, hypertrophic cardiomyopathy and the lymphangiectasias. Skeletal anomalies can be found, including retardation of bone maturation and sternal abnormalities. Other anomalies concern the urinary tract (pyeloureteral stenosis) and the digestive system. Radiological diagnostic procedures allow to disclose various elements of this polymalformative syndrome. They should be performed whenever suggestive clinical signs are present, e.g. hypertelorism, gonadal dysgenesis, down-slanting palpebral fissures and shield-like chest.