| Phenotype details |
see paper; ..., mild developmental delay, mild mental retardation; significant behavioral problems, aggressiveness to others and himself, head banging; significant speech delay; no autistic features; sleep difficulties, disturbances initiating sleep, frequent awakening; normal growth; no dysmorphic features; esotropia; MRI brain 4y-paucity of white matter, patchy white matter hyperintensities on T2 weighted images; brother milder developmental delay |