Table 1: Characteristics and BIRADS score of the 38 selected patients with ultrasound and digital mammography findings classified as BIRADS 3, 4 or 5. DM microcalc: presence of suspicious microcalcifications on digital mammography; HISTO: histology; n/a: not available.

MX BIRADS	US IRADS	MRI BIRADS	Histology	MX micro	US Size (mm)	MRI 1° Lesion (mm)	MRI 2° Lesion (mm)	MRI 3° Lesion (mm)	Histo 1° Lesion (mm)	Histo 2° Lesion (mm)	Histo 3° Lesion (mm)
1	3	5	IDC + DCIS		7	60	32	7	58	28	7
4	4	4	IDC		15	50			50
3	1	4	Intracystic papillary cancer	X	no	15	8		15	10
4	4	5	IDC	X	25	80			90
1	3	5	Intraductal papilloma		7	9			10
5	3	5	ID + DCIS	X	15	40	18	15	40	20	15
1	3	4	Sclerosing adenosis		6	10			10
4	3	4	Papillary carcinoma	X	13	13			15
n/a	4	1	Follow up		19	0
1	4	5	ILC		20	30			28
0	4	2	Usual ductal hyperplasia		12	13			13
4	1	5	DCIS	X	No	25	16	9	22	15	7
3	3	5	Papillary carcinoma		20	25			24
5	5	5	IDC		25	25			25
5	5	5	IDC + DCIS	X	40	50	24	9	52	25	10
0	3	2	Follow-up		10	15
n/a	3	2	Follow-up		10	13
5	5	5	IDC		20	40	22		39	20
2	3	3	Papillomatosis		15	12			15
4	1	5	DCIS	X	no	35			35
3	3	4	Papillary carcinoma		25	25	12		25	10
4	4	3	Follow-up		13	15
n/a	3	2	Sclerosing adenosis		10	12
4	1	3	Follow-up	X	no	8
n/a	4	2	Follow-up		18	20
n/a	3	2	Follow-up		15	10
5	5	5	Multicentric IDC		12	35	26	10	30	30	10
n/a	4	3	Benign phyllodes tumour		40	40			43
n/a	4	2	Granulomatous mastitis		25	25			25
4	1	5	DCIS	X	0	30			38
4	4	3	Complex sclerosing lesion		22	23			23
4	4	5	IDC + ILC		22	35			38
n/a	3	2	Follow-up		7	7
3	1	3	Follow-up		no	10	6
3	3	3	Papilloma		5	5			5
n/a	3	4	IDC		15	10			11
0	3	4	IDC		21	45	23		45	24
n/a	3	4	Papillomatosis		6	8			8