Practical Concerns Regarding the 7th Edition AJCC Staging Guidelines
Table 3
Regional lymph nodes (N).
Nx
Regional lymph nodes cannot be assessed.
N0
No regional lymph node metastases.
N1
Metastasis in a single ipsilateral lymph node, 3 cm or less in greatest dimension.
N2
Metastasis in a single ipsilateral lymph node, more than 3 cm but not more than 6 cm in greatest dimension; or in multiple ipsilateral lymphnodes, none more than 6 cm in greatest dimension; or in bilateral orcontralateral lymph nodes, none more than 6 cm in greatest dimension.
N2a
Metastasis in a single ipsilateral lymph node, more than 3 cm but not more than 6 cm in greatest dimension.
N2b
Metastasis in multiple ipsilateral lymph nodes, none more than 6 cm ingreatest dimension.
N2c
Metastasis in bilateral or contralateral lymph nodes, none more than 6 cm in greatest dimension.
N3
Metastasis in a lymph node, more than 6 cm in greatest dimension.
From the AJCC 7th edition “Cutaneous Squamous Cell Carcinoma and Other Cutaneous Carcinomas”.