| Phenotype details |
see paper; normal birth, perinatal events unremarkable; delayed early motor milestones (HP:0001270), 17m-walk; 5y-distal muscle weakness (HP:0002460), numbness (HP:0033748), symptoms progressed slowly;11y-pes cavus (HP:0001761), foot drop (HP:0001761); symmetrical weakness of ankle dorsiflexion, moderate atrophy distal muscles lower limbs (HP:0003693), atrophy thenar muscles upper limbs; absent tendon reflexes all limbs (HP:0001284); normal pinprick sensation, normal vibration sensation; normal cognition, cranial nerves, cerebellar function; axonal sensorimotor neuropathy with moderate decrease motor nerve conduction velocities median, ulnar, peroneal, tibial nerves, absence/severe decrease compound muscle action potential and sensory nerve action potential all tested nerves, ... |