:::目前位置：首頁 > 學術資訊 > TNM and Stage Groupings > Carcinoma of the Eyelid

Carcinoma of the Eyelid

Primary Tumor (T)
T Category	Stage Category Definitions
TX	Primary tumor cannot be assessed
T0	No evidence of primary tumor
Tis	Carcinoma in situ
T1	Tumor 5 mm or less in greatest dimension. Not invading the tarsal plate or eyelid margin.
T2a	Tumor more than 5 mm, but not more than 10 mm in greatest dimension. Or, any tumor that invades the tarsal plate or eyelid margin.
T2b	Tumor more than 10mm, but not more than 20 mm in greatest dimension. Or, involves full thickness eyelid.
T3a	Tumor more than 20 mm in greatest dimension. Or, any tumor that invades adjacent ocular, or orbital structures. Any T with perineural tumor invasion.
T3b	Tumor complete resection requires enucleation, exenteration or bone resection.
T4	Tumor is not resectable due to extensive invasion of ocular, orbital, craniofacial structures or brain.

Regional Lymph Nodes (N)
N Category	Stage Category Definitions
NX	Regional lymph nodes cannot be assessed.
N0	No regional lymph node metastasis, based upon lymph node biopsy.
N1	Regional lymph node metastasis.

Distant Metastasis (M)
M Category	Stage Category Definitions
M1	Distant metastasis

No distant metastasis (no pathologic M0; use clinical M to complete stage group)

Anatomic Stage/Prognostic Groups
Stage	T	N	M
0	Tis	N0	M0
IA	T1	N0	M0
IB	T2a	N0	M0
IC	T2b	N0	M0
II	T3	N0	M0
IIIA	T3b	N0	M0
IIIB	Any T	N1	M0
IIIC	T4	Any N	M0
IV	Any T	Any N	M1