Stage I Bone Cancer AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage I includes: IA: (T1, N0, M0, G1 or GX); IB: (T2, N0, M0, G1 or GX); (T3, N0, M0, G1 or GX). T1: Tumor measuring 8 cm or less in greatest dimension. T2: Tumor measuring more than 8 cm in greatest dimension. T3: Discontinuous tumors in the primary bone site. N0: No regional lymph node metastasis. M0: No distant metastasis. GX: Grade cannot be assessed. G1: Well differentiated, low grade. (AJCC 8th ed.)

**Synonyms:** - Stage I Appendicular Skeleton, Trunk, Skull, and Facial Bones Cancer AJCC v8 - Stage I Bone Cancer