This scientific work intends to evaluate some of the particular clinical aspect of this cancer disease comparing the present medical tendencies with the clinical experience of the Department of Surgery I--Clinical Country Hospital Constantza. The scientific works was performed on a period of 5 years (March 1993-March 1998) on a number of 269 cases of breast cancer diagnosed and treated in our clinic. From the whole group of patients 33 particular cases were extracted: 26 were female patients aged over 70 years, 3 cases of bilateral breast cancer, 2 were breast cancer in association with other neoplasic locations and 2 male breast cancer. These cases were analysed using the: tumor location, clinical staging, hystopathological forms and complex therapy applied. This research work reveals the fact that breast cancer might present some particular aspect to be taken in consideration during the diagnosis and treatment of this frequent disease.