[7 cases of trisomy 2q34 leads to 2qter resulting from a familial t(2;8)(q34;23)]. 1978

C Laurent, and M C Biemont, and P Guibaud, and J Guillot, and B Noël, and B Quack, and M Geneviève, and M L Cressens

Seven patients from two different families are trisomic 2q34 leads to 2qter due to segregation of a familial t(2;8)(q34;p23). The clinical features are characteristic: microcephaly, a narrow forehead with bossing and temporal retraction, hypertelorism, palpebral fissures slanted downwards, large irides, and a very concave margin of the lower eyelid. Mental retardation is severe with a mean IQ of 50.

UI MeSH Term Description Entries
D008297 Male Males
D008607 Intellectual Disability Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual has an intellectual disability. IQ scores between 70 and 79 are in the borderline range. Scores below 67 are in the disabled range. (from Joynt, Clinical Neurology, 1992, Ch55, p28) Disability, Intellectual,Idiocy,Mental Retardation,Retardation, Mental,Deficiency, Mental,Intellectual Development Disorder,Mental Deficiency,Mental Retardation, Psychosocial,Deficiencies, Mental,Development Disorder, Intellectual,Development Disorders, Intellectual,Disabilities, Intellectual,Disorder, Intellectual Development,Disorders, Intellectual Development,Intellectual Development Disorders,Intellectual Disabilities,Mental Deficiencies,Mental Retardations, Psychosocial,Psychosocial Mental Retardation,Psychosocial Mental Retardations,Retardation, Psychosocial Mental,Retardations, Psychosocial Mental
D010375 Pedigree The record of descent or ancestry, particularly of a particular condition or trait, indicating individual family members, their relationships, and their status with respect to the trait or condition. Family Tree,Genealogical Tree,Genealogic Tree,Genetic Identity,Identity, Genetic,Family Trees,Genealogic Trees,Genealogical Trees,Genetic Identities,Identities, Genetic,Tree, Family,Tree, Genealogic,Tree, Genealogical,Trees, Family,Trees, Genealogic,Trees, Genealogical
D010641 Phenotype The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment. Phenotypes
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D002900 Chromosomes, Human, 1-3 The large, metacentric human chromosomes, called group A in the human chromosome classification. This group consists of chromosome pairs 1, 2, and 3. Chromosomes A,Group A Chromosomes,Chromosome, Group A,Chromosomes, Group A,Group A Chromosome
D002906 Chromosomes, Human, 6-12 and X The medium-sized, submetacentric human chromosomes, called group C in the human chromosome classification. This group consists of chromosome pairs 6, 7, 8, 9, 10, 11, and 12 and the X chromosome. Chromosomes C,Group C Chromosomes,Chromosomes, Human, 6-12,Chromosome, Group C,Chromosomes, Group C,Group C Chromosome
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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