Digital Atlas of Breast Pathology by Meenakshi Singh, MD © - Department of Pathology, Stony Brook University Medical Center
Invasive mammary carcinoma, combined
histologic grade 2 of 3, Her 2 neu negative.Moderately
differentiated. Male breast carcinomas express Her 2 neu less frequently than female breast carcinomas. Note the lack of dark membranous staining.