Breast cancer in young woman is increasing. The objective of this work was to analyze the imaging characteristics of breast cancer in young woman under 35 years, determinate the sensitivity and the specificity of each imaging means and evaluate epidemiological, clinical, pathological and therapeutic
characteristics of breast cancer in this slice of age. Through a retrospective study spread over 3 years from January 2015 to December 2017 and held at the medical imaging services of Pierre and Marie Curie of Algiers, we identified 204 cases of breast cancer in patients aged under 35 years.. In mammography the distribution of cases revealed that half (53.9%) was classified BIRADS 5,35.3 % of the cases classified BIRADS 4, 7.2 % classified BIRADS 3 and a small percentage (3.6%) in BIRADS 0. The sensitivity of mammography in young women in our series was 89.4%. For the ultrasound, the distribution of cases according to the BIRADS stages reveals that more than half was closed ACR5, representing 64%, 32.7% ranked in ACR4 and 3.3% in ACR3. The sensitivity of this test was 96.7%. In pathological terms it was a carcinoma infiltrating non-specific type in 91% of cases, with predominance of SBR II and III ranks 90.6 %. 204 patients received surgery, radical in 63% and 37% conservative. 61% of patients received adjuvant chemotherapy, and 39% of patients received neoadjuvant chemotherapy. 204 had a locoregional irradiation. study joins the data in the literature advocating more advanced forms and worse prognosis of breast cancer in young patients on the one hand, and secondly to a classic radiological appearance of the breast with a mass irregular.