Table 1.

Discovery phase cohort tumor characteristics

	n (%)
Invasive tumor size (mm), n = 46
<5	5 (10.9)
5–10	5 (10.9)
10–20	16 (34.8)
20–50	17 (37.0)
>50	3 (6.5)
Lymph node status (no. positive nodes), n = 45*
0	13 (28.9)
1–3	23 (51.1)
4–9	6 (13.3)
>10	3 (6.7)
Histologic subtype, n = 46
Ductal NOS	41 (89.1)
Lobular, pleomorphic	1 (2.2)
Cribriform	1 (2.2)
Mixed †	2 (4.3)
Too small to type	1 (2.2)
Grade, n = 43 ‡
1	14 (32.6)
2	19 (44.2)
3	10 (23.3)
Lymphovascular invasion, n = 46
Absent	10 (21.7)
Present	36 (78.3)
% Overall tumor comprised by in situ carcinoma, n = 46
<25	17 (37.0)
25–50	15 (32.6)
50–75	4 (8.7)
>75	10 (21.7)
Uniform/mixed DCIS morphology, n = 45§
Uniform	32 (69.6)
Mixed	14 (30.4)

Abbreviation: NOS, not otherwise specified.

^*For 1 case, lymph node status not available.

^†Mixed subtypes included a mixture of NOS/tubular/cribriform and NOS/mucinous.

^‡Three cases were too small to be graded.

^§Excludes one sample from a tumor with lobular carcinoma in situ only.