They (radiologists) might have decided they wanted an ultrasound to rule out a solid mass. Your ultrasound probably evidenced the mass was a fluid-filled cyst and was unlikely to be malignant. Ultrasound can be used (and is possibly used more in other countries since it is less expensive than MRI, etc for social medicine plans) to rule out nature of a mass before proceeding to biopsy. I would imagine you are safe. But for your own piece of mind you might want to ask the radiologist if they will biopsy anyway to be sure there is no cancer since in any diagnostic there is a margin of error- or get a second opinion. You don't need their permission for a second opinion. You could find another radiologist/surgeon in your area, contact them to set up an appointment - and then ask your documents (tests results, notes, and images) are sent to the other office. This can be done over the phone or requested in "my chart" . Tell the first office you don't mean to offend them but given your family and personal history, and unknowns about the family history, you would like more than an ultrasound to be certain. You can also tell them you neglected to ask during the appointment because you were stressed out. If you do not advocate for yourself, no will one...

If you don't want to call, somewhere in the "my chart" menu you can request documents and when you complete the request can you send them to the other office. Probably best to ask the second office if there is someone who you should send your previous (first office) information to - sometimes they have a person who specifically manages incoming documents, sometimes not. Also, ask the second office for fax number to send the documents. I don't quite understand all medical office policies but a fax is considered a secure method for transfer of medical information. Also, you might want to ask persons (start a new topic?) for a recommendation for a radiologist, maybe a breast center, in your area - that way you know someone had good treatment and wouldn't expect otherwise. I hope you can relax and enjoy some quality down time with friends and family over the holiday; the waiting game is terrible and we need to make certain we have some joy in our lives! I wish you luck with your journey and prognosis.