Multiple Primary Cancers: Association of Breast Cancer and Lung Carcinoma

Abstract

Multiple primary cancers are relatively rare. The association between lung and breast cancer remains exceptional and requires genetic investigation and identification of factors that promote cancer development. We report the case of a 39-year-old patient who was hospitalized for a left lung lesion with nodules in both breasts. Bronchial biopsies confirmed a primary lung adenocarcinoma. A biopsy of the breast revealed an infiltrating carcinoma of NOS type. The treatment consisted of palliative chemotherapy. Although the association of multiple cancers remains rare, their discovery requires a specific therapeutic approach depending on the staging of each cancer.