A BI-RADS 5 does not give any indication of how bad a cancer may be, because it doesn't even mean for sure there IS any cancer, just a finding with a high level of suspicion for being malignant. (We have had members who had a 5 and after biopsy were found not to have cancer.)
BI-RADS is a standardized system used by radiologists to communicate the level of suspicion of their findings:
Category 0 -- Incomplete
Your mammogram or ultrasound didn't give the radiologist enough information to make a clear diagnosis. Don't worry, this may mean that scar tissue from a previous surgery or biopsy may have shown up, or that a lump that is big enough to be easily felt isn't imaging clearly. You will need to have a follow-up image done.
Category 1 -- Normal
There are no suspicious masses or calcifications to report; tissue looks healthy.
Category 2 -- Benign or Negative
Breasts are same size and shape and tissue looks normal. Any cysts, fibroadenomas, or other masses appear benign.
Category 3 -- Probably Benign
There are no suspicious lesions, masses, or calcifications to report, but follow-up to confirm that no cancer exists is recommended. This may be needed if your radiologist does not have your baseline or previous mammogram for comparison.
Category 4 -- Possibly Malignant
There are some suspicious lesions, masses, or calcifications to report; a biopsy is recommended to check the suspicious area.
Category 5 -- Malignant
There are masses with an appearance of cancer. A biopsy is recommended to make an accurate diagnosis.
Category 6 -- Malignant Tissue from a biopsy has been examined and found to be cancerous, and treatment such as surgery, chemotherapy, and/or radiation is required.
Please post again, by adding comments to this same thread, if you have any other questions, or just need emotional support.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. MedHelp is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.