fnac is fine needl aspiration cytology in which usually a tumor or growth is punctured with a syringe and obtained material is spread on slide to see under microscope the histology or cells of the tumor. your reault has shown some abnormal cells which is suspected of having cancer in that growth and its advised to confirm it by doing core biopsy in which some of the tissue is taken and then slides are made to study the tissue of the tumor.
what does the following fnac means: site: left breast lump materil gross: particulate stains performed: mgg pap microscopic examination: a mixture of benign as well ass neoplastic ductal epithelial cell with nuclear crowding and hyperchromasia impression: suggestive of atypical epitheliosis advice: core biopsy to rule out duct carcinoma