Table 2.

Lesions with their respective  number of histological examinations (HE, in number), with their relative rate of histological examinations (HER, in percent), with their agreement rate between histological examination and ultrasound examination (AR, in percent), their volume and their skin-to-lesion distance (n = 105) categorized as benign (BEN) or malignant (MAL) lesions. The ductal carcinoma in situ (DCIS) is categorized as a malignant lesion. 63% of the sonographic diagnoses were histologically controlled. 39 lesions were not histologically analyzed due to their benign appearance in the ultrasound. The volume of the lesions were calculated using the following formula: π/6 × craniocaudal diameter x dorsoventral diameter x mediolateral diameter. The range of the volume, median and mean volume are stated in ml. The unit for the skin-to-lesion distance is mm. Lymphnode (node)

		HE	HER	AR	Volume			Skin-to-lesion distance
					Range	Median	Mean	Range	Median	Mean
All (n = 105)		66	63	100	0.02–41.1	0.5	19	0–23	6	7
BEN	Fibroadenoma (n = 22)	18	81	100	0.1–14.7	0.7	2.5	1–13	6	5
	Cyst (n = 32)	0	0	100	0.02–41.1	0.5	1.9	0–16	4	6
	Node (n = 5)	2	40	100	0.2–8.9	0.8	2.2	2–23	10	11
	Papillomas (n = 4)	4	100	100	0.2–1.0	0.6	0.6	6–20	7	10
	Atheromas (n = 2)	2	100	100	0.03–0.6	0.3	0.3	0–1	7	10
MAL	DCIS (n = 3)	3	100	100	0.2–3.2	0.6	13	10–20	11	14
	Mamma carcinomas (n = 37)	37	100	100	0.05–41.1	0.8	25	0–15	6	6