| Phenotype details |
two affected siblings, onset 11y , spastic gait , frequent falling, lower limb spasticity and weakness,pes cavus, dysarthria, shortening achill tendon (releasing in age 13y ) chronic neurogenic changes in lower limb with possible mild anterior horn cell disease reported in EMG/NCV ,brain MRI normal( mild asymmetric right ventricle dilation as a normal variation),normal report of MR spectroscopy , normal cervical and thoricic MRI. |