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Thyroid Cancer Treatment (PDQ®)

  • Updated: 02/28/2014

Table 4. Anatomic Stage/Prognostic Groupsa,b

Stage T N M 
Papillary or follicular (differentiated)
YOUNGER THAN 45 YEARS
IAny TAny NM0
IIAny TAny NM1
45 YEARS AND OLDER
IT1N0M0
IIT2N0M0
IIIT3N0M0
T1N1aM0
T2N1aM0
T3N1aM0
IVAT4aN0M0
T4aN1aM0
T1N1bM0
T2N1bM0
T3N1bM0
T4aN1bM0
IVBT4bAny NM0
Stage IVCAny TAny NM1
Medullary carcinoma (all age groups)
IT1N0M0
IIT2N0M0
T3N0M0
IIIT1N1aM0
T1N1aM0
T2N1aM0
T3N1aM0
IVAT4aN0M0
T4aN1aM0
T1N1bM0
T2N1bM0
T3N1bM0
T4aN1bM0
Stage IVBT4bAny N
IVBT4bAny NM0
IVCAny TAny NM1
Anaplastic carcinoma c
IVAT4aAny NM0
IVBT4bAny NM0
IVCAny TAny NM1

aReprinted with permission from AJCC: Thyroid. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 87-96.
bSeparate stage groupings are recommended for papillary or follicular (differentiated), medullary, and anaplastic (undifferentiated) carcinoma.
cAll anaplastic carcinomas are considered Stage IV.