Hi Dio,
Sorry to hear you’re going through this. Sometimes they can have a pretty good idea from the mammo & ultrasound, however, the biopsy will confirm the diagnosis, which includes the grade & they have an idea of stage from the ultrasound, although this usually isn’t properly finalised until the nodes have been biopsied - usually in surgery later.
Although this is a horribly anxious time, if it is confirmed, the good thing is it has been picked up & can now be dealt with. Loads of us have been through it & are now back to life as normal.
There’s plenty of support here, so do come back whenever you need to & let us know how you get on.
ann x