Breast screening

Hi! 
I’ve just noticed on my breast screening result using the NHS App  that it states - Significance Significant - My result was normal, obviously I’m now wondering what this means? It is also listed as a ‘condition’ on my medical records, but I’ve never had any issues with breast screening? Can anyone help? I’ve tried to call the clinic but ‘unable to take my call’ ‍♀️

Thank you