| pN0 |
Breast Cancer pN0 TNM Finding v7 |
C88349 |
NCI Thesaurus |
Breast cancer without histological evidence of regional lymph node involvement. Lymph nodes containing only isolated tumor cell clusters are excluded from the total positive node count for purposes of regional lymph node classification, but should be included in the total number of nodes evaluated. (from AJCC 7th Ed.) |
| pN0(i+) |
Breast Cancer pN0(i+) TNM Finding v7 |
C88351 |
NCI Thesaurus |
Breast cancer with malignant cells in regional lymph node(s) no greater than 0.2 mm (detected by H&E or immunohistochemistry including isolated tumor cell clusters). (from AJCC 7th Ed.) |
| pN0(i-) |
Breast Cancer pN0(i-) TNM Finding v7 |
C88350 |
NCI Thesaurus |
Breast cancer without histological evidence of regional lymph node involvement, and with negative immunohistochemistry. (from AJCC 7th Ed.) |
| pN0(mol+) |
Breast Cancer pN0(mol+) TNM Finding |
C48995 |
NCI Thesaurus |
Breast cancer with positive molecular findings by RT-PCR, but without histological or immunohistochemical evidence of regional lymph node involvement. (from AJCC 6th and 7th Ed.) |
| pN0(mol-) |
Breast Cancer pN0(mol-) TNM Finding |
C48994 |
NCI Thesaurus |
Breast cancer without histological evidence of regional lymph node involvement, and with negative molecular findings by RT-PCR. (from AJCC 6th and 7th Ed.) |
| pN1 |
Breast Cancer pN1 TNM Finding v7 |
C88352 |
NCI Thesaurus |
Breast cancer with micrometastases; or metastases in 1 to 3 axillary lymph nodes; and/or metastases in internal mammary nodes, with the metastases detected by sentinel lymph node biopsy but not clinically detected. "Not clinically detected" is defined by imaging studies (excluding lymphoscintigraphy) or by clinical examination. (from AJCC 7th Ed.) |
| pN1a |
Breast Cancer pN1a TNM Finding |
C48998 |
NCI Thesaurus |
Breast cancer with metastasis in 1 to 3 axillary lymph nodes (at least 1 tumor deposit greater than 2.0 mm). (from AJCC 6th and 7th Eds.) |
| pN1b |
Breast Cancer pN1b TNM Finding v7 |
C88354 |
NCI Thesaurus |
Breast cancer with metastases in internal mammary lymph nodes with micrometastases or macrometastases detected by sentinel lymph node biopsy but not clinically detected. "Not clinically detected" is defined by imaging studies (excluding lymphoscintigraphy) or by clinical examination. (from AJCC 7th Ed.) |
| pN1c |
Breast Cancer pN1c TNM Finding v7 |
C88355 |
NCI Thesaurus |
Breast cancer with metastases in 1 to 3 axillary lymph nodes and in internal mammary lymph nodes with micrometastases or macrometastases detected by sentinel lymph node biopsy but not clinically detected. "Not clinically detected" is defined by imaging studies (excluding lymphoscintigraphy) or by clinical examination. (from AJCC 7th Ed.) |
| pN1mi |
Breast Cancer pN1mi TNM Finding v7 |
C88353 |
NCI Thesaurus |
Breast cancer with micrometastases (greater than 0.2 mm and/or more than 200 cells, but none greater than 2.0 mm) (from AJCC 7th Ed.) |
| pN2 |
Breast Cancer pN2 TNM Finding v7 |
C88358 |
NCI Thesaurus |
Breast cancer with metastases in 4 to 9 axillary lymph nodes, or metastases in clinically detected internal mammary lymph nodes in the absence of axillary lymph node metastases. "Clinically detected" is defined as detected by imaging studies (excluding lymphoscintigraphy) or by clinical examination and having characteristics highly suspicious for malignancy or a presumed pathologic macrometastasis based on fine needle aspiration biopsy with cytologic examination. (from AJCC 7th Ed.) |
| pN2a |
Breast Cancer pN2a TNM Finding |
C49002 |
NCI Thesaurus |
Breast cancer with metastasis in 4 to 9 axillary lymph nodes (at least 1 tumor deposit greater than 2.0 mm). (from AJCC 6th and 7th Eds.) |
| pN2b |
Breast Cancer pN2b TNM Finding v7 |
C88360 |
NCI Thesaurus |
Breast cancer with metastases in clinically detected internal mammary lymph nodes in the absence of axillary lymph node metastases. "Clinically detected" is defined as detected by imaging studies (excluding lymphoscintigraphy) or by clinical examination and having characteristics highly suspicious for malignancy or a presumed pathologic macrometastasis based on fine needle aspiration biopsy with cytologic examination. (from AJCC 7th Ed.) |
| pN3 |
Breast Cancer pN3 TNM Finding v7 |
C88361 |
NCI Thesaurus |
Breast cancer with metastases in 10 or more axillary lymph nodes; or in infraclavicular (level III axillary) lymph nodes; or in clinically detected ipsilateral internal mammary lymph nodes in the presence of 1 or more positive level I, II axillary lymph nodes; or in more than 3 axillary lymph nodes and in internal mammary lymph nodes with micrometastases or macrometastases detected by sentinel lymph node biopsy but not clinically detected; or in ipsilateral supraclavicular lymph nodes. (from AJCC 7th Ed.) |
| pN3a |
Breast Cancer pN3a TNM Finding |
C49005 |
NCI Thesaurus |
Breast cancer with metastases in 10 or more axillary lymph nodes (at least one tumor deposit greater than 2.0 mm); or metastases to the infraclavicular (level III axillary) lymph nodes. (from AJCC 6th and 7th Eds.) |
| pN3b |
Breast Cancer pN3b TNM Finding v7 |
C88362 |
NCI Thesaurus |
Breast cancer with metastases in clinically detected ipsilateral internal mammary lymph nodes in the presence of 1 or more positive axillary lymph nodes; or in more than 3 axillary lymph nodes and in internal mammary lymph nodes with micrometastases or macrometastases detected by sentinel lymph node biopsy but not clinically detected. (from AJCC 7th Ed.) |
| pN3c |
Breast Cancer pN3c TNM Finding |
C49007 |
NCI Thesaurus |
Breast cancer with metastasis in ipsilateral supraclavicular lymph nodes. (from AJCC 6th and 7th Eds.) |
| pNX |
Breast Cancer pNX TNM Finding |
C48990 |
NCI Thesaurus |
Breast cancer in which regional lymph nodes cannot be assessed (e.g., previously removed, or not removed for pathologic study). (from AJCC 6th and 7th Eds.) |