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, shuffling gait, and leg spasticity; (3) growth: small body size; (4) skeleton: lumbar lordosis (sway back). The syndrome is inherited as an X-linked trait and so affects mainly boys. Alternative names include MASA syndrome (MASA stands for mental retardation, aphasia, shuffling gait, and adducted thumbs), clasped thumb and mental retardation, congenital clasped thumb with mental retardation, and adducted thumb with mental retardation.

Medical dictionary. 2011.

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  • 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

  • MASA syndrome — Classification and external resources OMIM 303350 MASA syndrome, also called CRASH syndrome and Gareis Mason syndrome,[1] is a rare X linked recessive[2 …   Wikipedia

  • 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

  • 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,… …   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

  • 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

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