Digital Breast Tomosynthesis Changes Management in Patients Seen at a Tertiary Care Breast Center

Table 4

(a) Cancers diagnosed on DBT. (b) Imaging findings of diagnosed cancers.

(a)

	Patient 19	Patient 16	Patient 1
Age	61	59	66
History of breast cancer	No	No	No
High risk	Yes	No	No
Risk factor	2° family history	—	—
Symptoms	None	None (call back)	None (call back)
Imaging finding	Spiculated mass	Spiculated mass	Irregular mass
Breast density	Extremely dense	Heterogeneously dense	Heterogeneously dense
Type of biopsy	Ultrasound core	Ultrasound core	Ultrasound core
Focality	Unifocal	Unifocal	Unifocal
Nodal status	1/1 (0.1 cm)	0/1	0/1
Tumor size on excision	14 mm	16 mm	—; (residual DCIS only)
Tumor type	IDC/ILC	IDC/lobular features	IDC/DCIS
Grade	Poorly differentiated	Moderately differentiated	Well-moderately differentiated
Molecular subtype (ER/PR/Her2)	+/+/−	+/+/−	+/+/−

(b)

Patient	Seen on FFDM	Seen on; DBT	Visualized; on US	Mass	Imaging size (mm)	Shape	Margin	Calcs	Distribution	Character
1	No	Yes	Yes	Yes	6 mm	Irregular	Irregular	No	—
2	Yes	Yes	Not done	No	—	—	—	Yes	Group	Linear branching
3	Yes	Yes	Yes	Yes	40 mm	Irregular	Spiculated	No	—
4	Yes	Yes	Yes	Yes	9 mm	Irregular	Indistinct	No	—
5	Yes	Yes	Yes	Yes	53 mm	Oval	Irregular	No	—
6	Yes	Yes	Yes	Architectural; distortion	13 mm	Irregular	Irregular	Yes	Group	Punctate
7	Yes	Yes	Yes	Yes*	10 mm	Irregular	Spiculated	No	—
8****	No	No	No	No	—	—	—		—
9	Yes	Yes	Yes	Architectural distortion**	15 mm	Irregular	Spiculated	No
10	Yes	Yes	Yes	Yes	10 mm	Irregular***	Irregular	No
11	Yes	Yes	Yes	Yes*	11 mm	Round-lobulated	n/a	No
12	Yes	Yes	Not Done	No	—	—	—	Yes	2 Groups	Pleo-; morphic
13	Yes	Yes	Yes	Yes	11 mm	Round-spiculated	n/a	No
14	Yes	Yes	Yes	Yes	7 mm	Irregular	Spiculated	Yes	Associated	Coarse
15	Yes	Yes	Yes	Yes	3 mm	Oval	Lobulated	No
16	No	Yes	Yes	Yes	20 mm	Irregular	Spiculated	No
17	Yes	Yes	Yes	Yes	35 mm	Irregular	Lobulated	No
18	Yes	Yes	Yes	Yes	4 mm	Irregular	Spiculated	Yes	Segmental	Hetero-geneous
19	No	Yes	Yes	Yes	14 mm	Irregular	Spiculated	No

∗Asymmetry seen on FFDM, mass on DBT only.
**DBT identified a second 8 mm mass with irregular margins.
***Microlobulated mass on DBT.
****Skin lesion was metastatic invasive ductal carcinoma.