3–5 BI-RADs Microcalcifications: Correlation between MRI and Histological Findings

Table 2

MRI BI-RADS and histological correlation.

MRI BI-RADS (𝑁 lesions)	Histology, benign lesions	Histology, malignant lesions
1-2 (20)	11 apocrine metaplasia	2 DCIS
	6 typical ductal hyperplasia	1 atypical ductal hyperplasia
3A (4)	1 apocrine metaplasia	1 ductal papilloma
	1 typical ductal hyperplasia
	1 sclerosing adenosis
3B (7)		2 atypical ductal hyperplasia
		1 flat atypia
		2 DCIS
		2 ductal papilloma
4 (23)	1 apocrine metaplasia	17 DCIS
	3 typical ductal hyperplasia
	2 sclerosing adenosis
5 (8)		7 infiltrative ductal cancer
		1 DCIS