Difference between revisions of "Thyroid cancer staging"
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| pN1a | | pN1a | ||
| metastasis to level | | metastasis to level VI | ||
| level | | level VI = pretracheal, paratracheal, prelaryngeal/Delphian, perithyroidal | ||
|- | |- | ||
| pN1b | | pN1b | ||
| Line 61: | Line 61: | ||
Note: | Note: | ||
*Level | *Level VI = central neck dissection. | ||
==See also== | ==See also== | ||
*[[Thyroid gland]]. | *[[Thyroid gland]]. | ||
Revision as of 13:35, 13 November 2015
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 | |
| pT3 | >4 cm and limited to thyroid or "minimal" extrathyroidal extension | "minimal" extrathyroidal extension = sternothyroid m. or perithyroidal tissue | |
| 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 | level VI = pretracheal, paratracheal, prelaryngeal/Delphian, perithyroidal |
| pN1b | metastasis to level I, II, III, IV, V, or retropharyngeal, mediastinal lymph nodes (VII) |
Note:
- Level VI = central neck dissection.