N1a Stage Finding

A general term that refers to a TNM finding of cancer metastases usually in a limited number of regional lymph nodes. The definition of N1a TNM finding depends on the specific type of cancer that it refers to; for example, for breast cancer it refers to metastasis in 1 to 3 axillary lymph nodes (at least 1 tumor deposit greater than 2.0 mm); for cutaneous melanoma it refers to micrometastasis in one regional lymph node; for colorectal cancer it refers to metastasis in one regional lymph node. (NCI Thesaurus)

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N1 Stage Finding

A general term that refers to a TNM finding of cancer metastases usually in a limited number of regional lymph nodes. The…

N0 Stage Finding

A regional lymph node TNM finding indicating that there is no evidence of regional lymph node metastasis.

N0 (mol+) Stage Finding

A regional lymph node TNM finding indicating that there is no evidence of regional lymph node metastasis histologically and by immunohistochemistry, but…

N0 (mol-) Stage Finding

A regional lymph node TNM finding indicating that there is no evidence of regional lymph node metastasis histologically and molecular analysis (RT-PCR)…

N0 (i+) Stage Finding

A regional lymph node TNM finding indicating that there are malignant cells in regional lymph node(s) no greater than 0.2 mm and…

N0 (i-) Stage Finding

A regional lymph node TNM finding indicating that there is no evidence of regional lymph node metastasis histologically, and immunohistochemistry is…