[Noonan syndrome coexisting with essential arterial hypertension in 8 year old boy].

In the paper some basic data concerning Noonan syndrome were reminded. Then the case of 8 year old boy suffering from above mentioned syndrome coexisting with essential arterial hypertension was described. Such coexistence has been probably reported for the first time. Arterial hypertension in the described case was successfully treated with atenolol.