This site is targeted at medical and radiology professionals, contains user contributed content, and material that may be confusing to a lay audience. Use of this site implies acceptance of our Terms of Use.

5 tier ACR system

The 5 tier ACR system was an older system for classification of radiologic breast findings. 

  • 5 : malignant
  • 4 : probably malignant : biopsy should be considered
  • 3 : probably benign : initial short term follow up recommended 
  • 2 : benign
  • 1 : normal
  • 0 : need additional views

It has been replaced by the new 6 tier BIRADS classification system.

See also

Updating… Please wait.
Loadinganimation

Alert_accept

Error Unable to process the form. Check for errors and try again.

Alert_accept Thank you for updating your details.