u/Abject-Mountain-1215

Hi there. I recently had an ultrasound and it came back as BIRADS 4 (no letter). I’m set to have a biopsy this week but one note on the report made me a bit nervous and confused. The radiologist put “? Breast ca” on there. Does that mean he thinks it’s cancer or is there a different, less ominous meaning seeing as it’s a 4 and not a 5?

Thanks