"Grossly it appears similar to other invasive breast carcinomas."
"Microscopic appearance is of sheets, cords and at times tubules of neoplastic cells. The primary features are that of large amounts of eosinophilic, granular cytoplasm, tumour cells with well-defined margins, and large vesicular nuclei. The nucleus-to-cytoplasm ratio is about 1:2. They frequently reveal snouts which are accumulations of secreted granules in the apical cytoplasm, that is clearly revealed by staining dyes."