Pure Colloid Carcinoma of the Breast: One Case Report

Colloid carcinoma of the breast, also known as mucinous or gelatinous carcinoma, is a rare histological form of cancer accounting for 1 to 6% of all breast cancers. It is characterized by the production of extracellular mucus. Histologically, 2 types of colloid carcinoma are distinguished: pure colloid carcinoma, in which there is no infiltrating ductal carcinoma component, and mixed colloid carcinoma, which associates foci of infiltrating ductal carcinoma with the colloid component.