I am a 40 year old female. I had an breast MRI due to abnormal mammogram and ultrasound. Long story short, I will be having a lumpectomy for atypical finding. However, this is not my concern. The MRI showed edema of the sternum and a cat scan was ordered which turned out normal . My doctor says he suspects that my marrow is just really active and nothing pathological is going on. I am not satisfied with this answer. I am afraid that they are missing something like leukemia or lymphoma. The radiologist reading the MRI called it abnormal. They asked if i had had an injury which i had never. This makes me very worried.