ERBB2 and neoplasm: The relative risk of a spiculated tumour, compared to a distinct mass, being luminal B-like, HER2+ subtype or TNBC, compared to luminal A-like was lower: RRRadj 0.6 (CI 0.4–1.0), 0.4 (CI 0.2–0.8) and 0.1 (0.1–0.3), respectively.