摘要
pure primary squamous cell carcinoma (scc) of the breast is a rare clinicopathological entity, representing less than 0.1% of all breast carcinomas, composed entirely of malignant squamous cells do not exhibit anatomical relationship with the skin overlying to the breast. its etiopathogenesis, prognosis and treatment is controversial. we present a case of pure primary scc of the breast diagnosed at the unit of pathology, hospital hern芍n henr赤quez aravena.