ERBB2 and triple-negative breast carcinoma: On IHC subtyping, 68 (33.8%) were Luminal A type (ER and/or PR positive Her 2 negative), 55 (27.3%) were luminal B type (ER and/or PR positive Her 2 positive), 24 (11.9%) were HER2-enriched type (ER-, PR-negative and HER2-positive) and 54 (26.8%) were triple negative breast cancers.