Hello, welcome to the forum. Thanks for your question. We're sorry you are being called back for a second look but this is always in your best interest. They just want to be sure for your sake. However, the fact that they gave you a Bi Rad of 0 means they feel is is most certainly not cancer. So, an abnormal mammogram but not one that they feel is suspicious of cancer. https://www.healthline.com/health/birads-score I would not be concerned about cancer based on a bi rad of 0. Let us know how things turn out.