Solid Glycogen-rich Clear Cell Carcinoma of the Breast (A Light and Ultrastructural Study)

A solid glycogen-rich clear cell carcinoma of the breast is described. Its distinction from other breast tumors with a clear cell component is discussed. The previously reported example of glycogen-rich clear cell carcinoma of the breast and our case both were positive for estrogen receptors, and neither showed axillary nodal involvement or distant spread. It is suggested that glycogen-rich carcinoma may behave in a less aggressive fashion than either infiltrating ductal or lobular carcinoma of the breast.