[Phenotypic variability in 47, XXX patients: Clinical report of four new cases].

The 47, XXX karyotype has a frequency of 1 in 1000 female newborns. However, this karyotype is not usually suspected at birth or childhood. These patients are usually diagnosed during adulthood when they develop premature ovarian failure or infertility, because the early phenotype doesn t have any specific features.

[Smith-Magenis syndrome: case report and review].

Smith-Magenis syndrome (SMS) is characterized by distinctive facial features that progress with age, developmental delay, cognitive impairment, and behavioral abnormalities associated with molecular anomaly in 17p11.2. Treatment includes: early childhood intervention programs, special education, vocational training later in life, and speech/language, physical, and occupational, behavioral, and sensory integration therapies.