Digital Atlas of Breast Pathology by Meenakshi Singh, MD © - Department of Pathology, Stony Brook University Medical Center

Fibroadenoma. Gross image.
The cut surface of this mass is characteristic for fibroadenoma with its slightly lobulated pattern and solid firm, bulging grayish-tan parenchyma. Occasional slit-like spaces can be seen. Myxoid change characterized by a glistening surface and calcification in longer standing lesions is not uncommon.