The cognitive and behavioural phenotype of Roifman syndrome.
Roifman syndrome can hide severe ID—test cognition even when the child looks capable.
01Research in Context
What this study did
Doctors wrote up one boy with Roifman syndrome.
They gave him full IQ and adaptive tests.
Before, people thought his mind was mostly intact.
The tests showed the opposite.
What they found
The boy had severe intellectual disability across every area.
His scores were far below the cut-off for ID.
Earlier notes had missed this.
Looks alone can hide big cognitive problems.
How this fits with other research
Koegel et al. (2014) tested 2,621 kids in a psych hospital.
One in six had undetected ID.
That large number backs the single case here.
Tyrer et al. (2009) mapped behavior in another rare syndrome.
They also used tiny groups to sketch a phenotype.
Together these papers say: test, don’t guess.
Why it matters
You can’t trust clinic chatter or “seems smart.”
Run full IQ and adaptive scales on every child with a rare diagnosis.
Catch the hidden ID early and shift teaching plans before gaps widen.
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02At a glance
03Original abstract
BACKGROUND: Roifman syndrome (OMIM 300258) is a multi-system disorder with a physical phenotype that includes Beta-cell immunodeficiency, intra-uterine and postnatal growth retardation, spondyloepiphyseal dysplasia, retinal dystrophy and characteristic facial dysmorphism. So far, six cases, all boys, have been reported in the literature. Roifman postulated that the syndrome may be due to a mutation in an X-linked gene or an autosomal gene giving rise to a sex-limited trait, but the definitive pathogenetic mechanism has still not been elucidated. Very little is known about the cognitive and behavioural phenotype of Roifman syndrome and no standardized measures of cognitive abilities have been reported. METHODS: We report the seventh case of a boy with Roifman syndrome and present the first systematic documentation of the cognitive and behavioural phenotype of an individual with the syndrome. RESULTS: In spite of having been reported as appearing intellectually 'able', formal evaluation showed very significant intellectual disability and neuropsychological impairment across cognitive domains. CONCLUSIONS: The findings suggest that Roifman syndrome may be an example of an X-linked mental retardation syndrome (XLMRS).
Journal of intellectual disability research : JIDR, 2006 · doi:10.1111/j.1365-2788.2006.00817.x