Phenotype details |
see paper; ..., normal delivery, birth weight 6.5 lb; mild/moderate learning disability; delayed walking; no epilepsy; 19y-OFC 53.4 cm; predominantly lower limbs affected; mild upper limb ataxia; ataxic gait; plantar response downgoing; short 4th/5th metacarpals (unilateral); mild hyper-telorism, relative small stature; flexed hips; late sitting; 2y6m-first steps, 10y-max mobility, 13y-detoriation; facial hypotonia; esotropia, nystagmus, jerk in horizontal plane and gaze-evoked upbeat in vertical plane, dysarthria, normal jaw jerk and upper limb co-ordination, normal optic discs; |