N2a TNM Finding

**Semantic type:** Finding

**Definition:** A general term that refers to a TNM finding of cancer metastases in several regional lymph nodes. The definition of N2a TNM finding depends on the specific type of cancer that it refers to; for example, for breast cancer it refers to metastases in 4 to 9 axillary lymph nodes (at least 1 tumor deposit greater than 2.0 mm); for cutaneous melanoma it refers to micrometastases in 2-3 regional lymph nodes; for colorectal cancer it refers to metastases in 4-6 regional lymph nodes.

**Synonyms:** - N2a - N2a - N2a Lymph Node Finding - N2a Node Finding - N2a Regional Lymph Nodes Finding - N2a Stage Finding