BruTuS (or Brugmann Hospital Tumor bank Service) is located in the Pathology department of the CHU Brugmann in Northern Brussels. It is a repository of frozen and formalin-fixed paraffin-embedded tumor samples collected from surgical specimens originating from Brugmann hospital and from the neighboring Children's Hospital Reine Fabiola (HUDERF).In accordance with the activity of the two hospitals, breast and pediatric tumor samples are the most frequent in the biobank.