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Table 3. Definitions of TNM Stage III

Stage TNM Description  
IIIT3, N0, M0, any GT3 = Tumor extends through the prostate capsule.c
N0 = No regional lymph node metastasis.
M0 = No distant metastasis.a
GX = Grade cannot be assessed.
G1 = Well differentiated (slight anaplasia) (Gleason score of 2–4).
G2 = Moderately differentiated (moderate anaplasia) (Gleason score of 5–6).
G3–4 = Poorly differentiated or undifferentiated (marked anaplasia) (Gleason score of 7–10).

T = Primary tumor; N = Regional lymph nodes; M = Distant metastasis; G = Histopathologic grade.
Reprinted with permission from AJCC: Prostate. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 457-68.
The explanations for superscripts a and c are at the end of Table 4.