<prompt> Which of the following features suggesting malignant lesion on mammography?Round well defined bordersMacrocalcificationsMicrocalcificationsFat content  <response>: Microcalcifications are suggestive of a malignant lesion. Macrocalcification Popcorn calcifications are fibroadenomas which are benign lesions The pattern and shape of microcalcifications can also give radiologists clues about whether cancer may be present. Linear, rod-like calcifications raise suspicion of underlying breast cancer, whereas popcorn, eggshell, and rim-like calcifications are usually benign. 