Ground glass-like or haze-like patterns were more common in luminal breast cancer (49/86, 57.0% vs. 1/56, 1.8%), and solidified-like or flocculated-like morphology of HER2 overexpression subtype had a higher ratio (24/56, 42.9% vs. 6/86, 7.0%), although these images can exist simultaneously in some cases. The gene discussed is ERBB2; the disease is breast cancer.