Multisystem developmental disorder (MSDD) is a term used by Stanley Greenspan to describe children under age 3 who exhibit signs of impaired communication as in autism, but with strong emotional attachments atypical of autism.[citation needed] It is described in the DC:0-3R manual as an optional diagnosis for children under two years of age.[1][2]
The term multisystem developmental disorder has also been used to describe various developmental disorders. These include:
- Alagille syndrome,[3] an autosomal dominant disorder with a wide range of features and manifestations. Its five most significant features are chronic cholestasis, a condition where bile cannot flow from the liver to the duodenum, occurring in 95% of cases; heart abnormalities (over 90%); butterfly vertebrae; posterior embryotoxon and a distinctive face (prominent forehead, deep-set eyes, and a pointed chin).[4]
- Rubinstein-Taybi syndrome,[5][6] a syndrome characterized by broad thumbs, facial abnormalities, and big toes alongside moderate to severe intellectual disability.[7]
- Williams syndrome,[8][9] a neurodevelopmental disorder characterized by a unique profile of strengths and deficits; most with the condition have mild intellectual disability but have grammatical and lexical abilities above what would be expected from their IQs.[10] They are hypersocial and empathetic, but social isolation is commonly experienced.[11]
- Proteus syndrome,[12] a congenital disorder causing disproportionate growth of skin, bone, and other tissues.[13]
- Asphyxiating thoracic dysplasia,[14] an autosomal recessive skeletal disorder with an estimated prevalence of between 1 in 100,000 and 1 in 130,000 live births.[15]
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
