The TNM (tumor-node-metastasis) classification for papillary and follicular carcinomas of the thyroid can be used for determining the tumor stage.
|
Parameter |
Finding |
Designation |
|
T (tumor) |
tumor <= 1 cm |
T1 |
|
|
tumor > 1 and <= 4 cm |
T2 |
|
|
tumor > 4 cm but within capsule |
T3 |
|
|
extension beyond capsule |
T4 |
|
N (node) |
no lymph node metastases |
N0 |
|
|
lymph node metastases |
N1 |
|
M (metastasis) |
no distant metastasis |
M0 |
|
|
distant metastases |
M1 |
Stage if Patient < 45 Years of Age
|
TNM |
Stage |
|
M0 with any T, any N |
I |
|
M1 with any T, any N |
II |
Stage if Patient >= 45 Years of Age
|
TNM |
Stage |
|
T1 N0 M0 |
I |
|
T2 N0 M0 or T3 N0 M0 |
II |
|
T4 or N1, M0 |
III |
|
M1 with any T, any N |
IV |
Specialty: Hematology Oncology, Surgery, general, Endocrinology
