Clinical features
Clinical features include:
- short stature with abnormal body proportions
- cubitus valgus
- webbed neck
Features different from Turner's syndrome include the characteristic facies:
- broad forehead
- ptosis
- hypertelorism
- epicanthic folds
- down slanting eyes
- low-set ears
- flat nasal bridge
- pectus carinatum & kyphoscoliosis
- congenital heart disease on the right side (compare to the left sided lesions of Turner's syndrome)
- cryptorchidism
Reference
- Limal JM, Parfait B, Cabrol S, et al. Noonan syndrome: relationships between genotype, growth, and growth factors. J Clin Endocrinol Metab. 2006 Jan;91(1):300-6.
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