Mental retardation and clasped thumbs
A syndrome with the following characteristic features: (1) Neurological: Mental retardation and aphasia (lack of speech); (2) Limbs: Clasped (adducted) thumbs, absent extensor pollicis longus and/or brevis muscles to the thumb, shuffling gait, and leg spasticity; (3) Skeleton: Lumbar lordosis (swayback); (4) Growth: Small body size. The syndrome is inherited as an X-linked recessive trait and so affects almost exclusively boys. Alternative names for the syndrome include MASA syndrome (MASA stands for mental retardation, aphasia, shuffling gait, and adducted thumbs), adducted thumb with mental retardation, congenital clasped thumb with mental retardation, and the Gareis-Mason syndrome.

Medical dictionary. 2011.

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  • Clasped thumbs and mental retardation — A syndrome with the following characteristic features: (1) neurologically: mental retardation and aphasia (lack of speech); (2) limbs: adducted (clasped) thumbs, absent extensor pollicis longus and/or brevis muscles to the thumb, shuffling gait,… …   Medical dictionary

  • Adducted thumbs with mental retardation — A syndrome with the following characteristic features: {{}}neurologically: mental retardation and aphasia (lack of speech) limbs: adducted (clasped) thumbs, absent extensor pollicis longus and/or brevis muscles to the thumb, shuffling gait, and… …   Medical dictionary

  • Congenital clasped thumb with mental retardation — See: Clasped thumbs and mental retardation …   Medical dictionary

  • Congenital clasped thumb — Infant’s persistent thumb clutched hand,[1] flexion adduction deformity of the thumb,[2] pollex varus,[3] thumb in the hand deformity.[4] …   Wikipedia

  • Gareis-Mason syndrome — An inherited (genetic) syndrome with characteristic features including (1) neurologically: mental retardation and aphasia (lack of speech); (2) limbs: adducted (clasped) thumbs, absent extensor pollicis longus and/or brevis muscles to the thumb,… …   Medical dictionary

  • MASA syndrome — MASA stands for mental retardation, aphasia, shuffling gait, and adducted thumbs. Features of the syndrome include: {{}}neurologically: mental retardation and aphasia (lack of speech); limbs: adducted (clasped) thumbs, absent extensor pollicis… …   Medical dictionary

  • Syndrome, MASA — MASA stands for mental retardation, aphasia, shuffling gait, and adducted thumbs. Features of the syndrome include (1) neurologically: mental retardation and aphasia (lack of speech); (2) limbs: adducted (clasped) thumbs, absent extensor pollicis …   Medical dictionary

  • List of diseases (A) — A listing of diseases.DiseasesTOC Aa Ab* Aagenaes syndrome * Aarskog Ose Pande syndrome * Aarskog syndrome * Aase Smith syndrome * Aase syndrome * ABCD syndrome * Abasia * Abdallat Davis Farrage syndrome * Abdominal aortic aneurysm * Abdominal… …   Wikipedia

  • Congenital — Present at birth. A condition that is congenital is one that is present at birth. There are numerous uses of congenital in medicine. There are, for example, congenital abnormalities. (For more examples, see below.) Versus genetic : One dictionary …   Medical dictionary

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