What is Smith-Lemli-Opitz syndrome?|
Smith-Lemli-Opitz syndrome is a developmental disorder that affects many parts of the body. This condition is characterized by distinctive facial features, small head size (microcephaly), mental retardation or learning disabilities, and behavioral problems. Malformations of the heart, lungs, kidneys, gastrointestinal tract, and genitalia are also common. Infants with Smith-Lemli-Opitz syndrome have weak muscle tone (hypotonia), experience feeding difficulties, and tend to grow more slowly than other infants. Most affected individuals have fused second a
How common is Smith-Lemli-Opitz syndrome?
Smith-Lemli-Opitz syndrome affects an estimated 1 in 20,000 to 40,000 births. This condition is most common in Caucasians (whites) of European ancestry. It is very rare among African and Asian populations.