Mr Justice Bodey ruled today that Neon Roberts can undergo surgery on a "residual tumour" but it is not yet clear whether he can receive radiotherapy.
The ruling in the Family Division of the High Court was due to decide whether Neon should undergo radiotherapy treatment following surgery, against the wishes of his mother.
That issue was put to one side to deal with the more pressing decision regarding his operation.
More top news
The former footballer said he hopes speaking about his grief will help others who find it difficult to talk about their feelings.
Royal Marine Alexander Blackman has spent more than three years in jail since being convicted of murdering an insurgent.
There are believed to be less than 250 of the global population remaining due to poaching and loss of habitat.