Difference between revisions of "Thyroid cancer staging"
Jump to navigation
Jump to search
Line 71: | Line 71: | ||
*[[Thyroid gland]]. | *[[Thyroid gland]]. | ||
*[[TNM staging system]]. | *[[TNM staging system]]. | ||
==References== | |||
{{Reflist|1}} | |||
[[Category:Thyroid gland]] | [[Category:Thyroid gland]] | ||
[[Category:Cancer staging]] | [[Category:Cancer staging]] |
Latest revision as of 13:35, 7 June 2022
Thyroid cancer staging is done with the TNM staging system.
TNM staging system
Tumour stage not including anaplastic carcinoma
T stage | Size/criteria | Other requirements | Comment |
---|---|---|---|
pT1a | 1 cm or less | limited to thyroid | very common |
pT1b | >1 cm and <=2 cm | limited to thyroid | |
pT2 | >2 cm and <=4 cm | limited to thyroid | |
pT3a | >4 cm | limited to thyroid | changed from AJCC 7th Ed. |
pT3b | extension into strap muscles | strap muscles include: sternothyroid m., sternothyroid, thyrohyoid, omohyoid | changed from AJCC 7th Ed. |
pT4a | any size | any of the following: subcutaneous tissue, trachea, esophagus, larynx, recurrent laryngeal nerve | |
pT4b | any size | any of the following: mediastinal vessels, encasing carotid artery, prevertebral fascia |
Lymph nodes
N stage | Criteria | Comment |
---|---|---|
pN0 | negative for lymph node metastasis | |
pN1a | metastasis to level VI or VII | level VI = pretracheal, paratracheal, prelaryngeal/Delphian, perithyroidal; VII = mediastinal lymph nodes |
pN1b | metastasis to level I, II, III, IV, V, or retropharyngeal | (level VII changed to pN1a in AJCC 8th Ed.) |
Note:
- Central neck dissection = level VI and VII[1]