Tumor size and lymph node status for women undergoing biopsy after screening mammography: Breast cancer surveillance consortium, 1996-2001

Variable	Lymph node status
	Lymph nodes not examined		Negative		No. of positive LNs						Total no.
	Lymph nodes not examined		Negative		1 to 3		4 to 9		≥10
	No.	Row percent	No.	Row percent	No.	Row percent	No.	Row percent	No.	Row percent
Total	639	9.4	4828	71.0	937	13.8	267	3.9	133	2.0	6804
Tumor size
0-10 mm	315	13.3	1882	79.6	133	5.6	22	0.9	13	0.5	2365
11-20 mm	169	7.0	1760	72.8	394	16.3	72	3.0	24	1.0	2419
21-50 mm	51	4.2	675	55.6	305	25.1	123	10.1	61	5.0	1215
>50	13	6.3	79	38.2	48	23.2	36	17.4	31	15.0	207
Unknown*	91	15.2	432	72.2	57	9.5	14	2.3	4	0.7	598

LN: lymph nodes.

* Unknown tumor size includes mammography diagnoses only, Paget disease, and pathologically invasive carcinoma, all with size not stated. Excluded from the table were 339 women who had lymph node examinations, including 10 women with an unknown number of positive lymph nodes and 329 women with unknown status of the lymph nodes examined.

Reproduced from: Weaver, D, Rosenberg, R, Barlow, W, et al. Pathologic findings from the breast cancer surveillance consortium. CANCER 2006; 106:732. Copyright ©2006 the American Cancer Society. The material is reproduced with the permission of Wiley-Liss, Inc., a subsidiary of John Wiley & Sons, Inc.

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Tumor size and lymph node status for women undergoing biopsy after screening mammography: Breast cancer surveillance consortium, 1996-2001