The former prime minister has previously accused The Sun of inappropriately accessing medical records to get the story in 2006.
But NHS Fife has now said a member of staff probably spoke "without authorisation" about his medical condition.
A SCOTTISH health board has admitted a health worker was probably the source of the revelation that Gordon Brown's son was suffering from cystic fibrosis.
The former prime minister has previously accused The Sun of inappropriately accessing medical records to get the story in 2006.
But NHS Fife has now said a member of staff probably spoke "without authorisation" about his medical condition.
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