Primary tumor cannot be assessed
No evidence of primary tumor
Carcinoma in situ
Tumor 10 mm or less in greatest extent
Without infiltration of the tarsus or lid margin
With infiltration of the tarsus or the lid margin
Infiltration of the entire width of the eyelid
Tumor > 10 mm, but max. ≤ 20 mm in greatest extent
Tumor > 20 mm, but max. ≤ 30 mm in largest extension
With infiltration of structures of the eye, the orbit or the face
Tumor with infiltration of structures of the eye and the orbit
Tumor infiltrates/breaks through the bony wall of the orbit or spreads into the paranasal sinuses or infiltrates the lacrimal sac/duct or the brain
Regional lymph nodes cannot be assessed
No regional lymph node metastases
Metastasis(es) in a solitary, ipsilateral lymph node, ≤ 3 cm in greatest extent
Metastasis(s) in a solitary, ipsilateral lymph node, > 3 cm in greatest extent or in bilateral or contralateral lymph nodes
No distant metastases
Distant metastases
Modified from Gershenwald JE et al: Melanoma staging: evidence-based changes in the American Joint Committee on Cancer, eighth edition of the cancer staging manual. CA Cancer J Clin. 2017 Nov;67(6):472-492
Stage 0
Tis
N0
M0
Stage IA
T1
Stage IB
T2a
Stage IIA
T2b, T2c, T3
Stage IIB
T4
Stage IIIA
Any T
N1
Stage IIIB
N2
Stage IVB
Any N
M1