Stage IVB

**Semantic type:** Clinical Attribute

**Definition:** Advanced cancer. The definition of stage IVB depends on the particular type of cancer that it refers to; for example, for bone cancer, stage IVB includes: (Any T, N1, Any M, Any G); (Any T, Any N, M1b, Any G). N1: Regional lymph node metastasis. M1b: Metastasis in the bone or other distant sites. (AJCC 8th ed.)