Mr. Richard Reyes 3.pdf

Pathologic classification (pN):pN1: Metastasis to movable ipsilateral axillary lymph node(s)pN1a: Only micrometastasis (none larger than 0.2 cm)pN1b: Metastasis to lymph node(s), any larger than 0.2 cmpN1bi: Metastasis in 1 to 3 lymph nodes, any more than 0.2 cm and allless than 2.0 cm in greatest dimensionpN1bii: Metastasis to 4 or more lymph nodes, any more than 0.2 cm andall less than 2.0 cm in greatest dimensionpN1biii: Extension of tumor beyond the capsule of a lymph nodemetastasis less than 2.0 cm in greatest dimensionpN1biv: Metastasis to a lymph node 2.0 cm or more in greatest dimensionpN2: Metastasis to ipsilateral axillary lymph node(s) fixed to each otheror to other structurespN3: Metastasis to ipsilateral internal mammary lymph node(s)