| A rare chromosomal anomaly syndrome resulting from a partial interstitial deletion of the short arm of chromosome 9. The disease has characteristics of mild to moderate developmental delay, hand tremors, myoclonic jerks, attention deficit-hyperactivity disorder and a social personality. Patients also present bruxism, short stature and minor facial dysmorphic features (bilateral epicanthic folds, broad, flat nasal bridge, anteverted nares, low-set ears micro/retro-gnathia). |
