Case 17 Answer

BI-RADS 2, Benign. OK this is a tricky question. The BI-RADS system was not developed to deal with malignancies other than breast cancer. The classifications, such as "Suspicious" designate the likelihood of breast cancer, not other tumors. Thus a finding such as this lymph node, which now has a normal appearance, is considered benign in that we have no suspicion of breast cancer. A surgeon would have to remove the node to determine whether there is any residual lymphomatous involvement.