ERBB2 and ductal breast carcinoma in situ: In a different study, Bae et al. analyzed 101 DCIS cases with microcalcifications and observed that fine pleomorphic and fine linear branching microcalcifications with segmental distribution were mainly seen in HER2+ DCIS cases, whereas punctate and amorphous microcalcifications with grouped distribution were more prevalent in ER/PR-positive cases [38].