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. Author manuscript; available in PMC: 2020 Nov 9.
Published in final edited form as: Expert Rev Anticancer Ther. 2018 Aug;18(8):775–784. doi: 10.1080/14737140.2018.1489246

Table 4.

Comparison of AJCC 7th edition and AJCC 8th edition clinical stage groupsa,b.

8th Edition 7th Edition
Clinical Stage Group T N M T N M
0 Tis N0 M0 Tis N0 M0
IA T1a N0 M0 T1a N0 M0
IB T1b N0 M0 T1b N0 M0
T2a N0 M0 T2a N0 M0
IIA T2b N0 M0 T2b N0 M0
T3a N0 M0 T3a N0 M0
IIB T3b N0 M0 T3b N0 M0
T4a N0 M0 T4a N0 M0
IIC T4b N0 M0 T4b N0 M0
III Any T ≥N1 M0 Any T N > N0 M0
IV Any T Any N M1 Any T Any N M1
a

Adapted from and used with permission of the American Joint Committee on Cancer (AJCC), Chicago, Illinois. The original and primary source for this information is the AJCC Cancer Staging Manual, 8th Edition (2017), published by Springer International Publishing (Gershenwald JE, Scolyer RA, Hess KR, et al. Melanoma of the Skin. In: Amin AB, Edge SB, Greene, FL, et al. (Eds). AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017:563–585).

b

Adapted from and used with permission of the American Joint Committee on Cancer (AJCC), Chicago, Illinois. The original and primary source for this information is the AJCC Cancer Staging Manual, 7th Edition (2009), published by Springer Verlag (Balch CM, Gershenwald JE, Soong SJ, et al. Melanoma of the Skin. In: Edge SB, Byrd D, Compton C, et al. (Eds). AJCC Cancer Staging Manual. 7th Ed. New York: Springer; 2009: 325–344).