A court has ordered a teenager with developmental disabilities to undergo leukaemia treatment involving dozens of general anaesthetics over the objections of her mother and her paediatrician.  

The 14-year-old, who the paediatrician said had a development age of 16-18 months, was diagnosed with pre-B-cell acute lymphoblastic leukaemia in March.   

Unanimous medical opinion was that she would die within four weeks without treatment, the Supreme Court of NSW said.   

But the girl’s mother rejected a two-year chemotherapy plan, telling the hospital that her daughter should be allowed to die without suffering.