Table 1. Definitions of TNM Stage Ia

StageTNMDescription
IT1, N0, M0T1 = Tumor ≤5 cm in greatest dimension, no extra-adrenal invasion.
N0 = No regional lymph node metastasis.
M0 = No distant metastasis.

T = primary tumor; N = regional lymph node; M = distant metastasis.

aReprinted with permission from AJCC: Adrenal Cortical Carcinoma. In: Amin MB, Edge SB, Greene FL, et al., eds.: AJCC Cancer Staging Manual. 8th ed. New York, NY: Springer, 2017, pp. 911–8.

From: Adrenocortical Carcinoma Treatment (PDQ®)

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PDQ Cancer Information Summaries [Internet].
Bethesda (MD): National Cancer Institute (US); 2002-.

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