The following data will be collected from electronic or paper medical data records as:
1\) Age 2 )Sex 3)Family history of breast cancer 4)Menopausal status 5 )Body mass index (BMI) 6) Histological type of BC as reported in pathology 7) The results of the lymph node status. 8)Registered data will be collected from the hospital databases and clinical sheers. 3 9) The gold standard reference in the evaluation of suspicious lymph nodes by nodal biopsy and postoperative pathology. Imaging technique and interpretation The imaging diagnostic for BC (MRI, CT, mammography, and ultrasound) patients are carried out by the Department of Diagnostic and Interventional Radiology of the Hospitals in the research and interpreted by radiologists at the time of BC diagnosis. The radiological reports for each patient and each imaging technique will be analyzed about the lymph node status. The nodal status will be reported as benign, indeterminate, and infiltrated as stated by the ACR lexicon. Mammography and US For mammography, we will use full-field digital mammography systems with the option of additional tomosynthesis for further characterization of the primary tumor at NCI with the commercially available The BC patients routinely receive an ultrasound exam including the evaluation of the breast and the axilla with the lymphatic drainage pathways as a part of the follow-up process active lymph nodes. p values lower than 0.05 will be considered significant.
