Stage IIIB

**Semantic type:** Clinical Attribute

**Definition:** Locally advanced cancer that has spread to nearby organs but not to distant anatomic sites. The definition of stage IIIB depends on the particular type of cancer that it refers to; for example, for testicular cancer, stage IIIB incudes: (Any pT/TX, N1-3, M0, S2); (Any pT/TX, Any N, M1a, S2). TX: Testicular cancer in which the primary tumor cannot be assessed. N1: Testicular cancer with metastasis with a lymph node mass 2 cm or smaller in greatest dimension and less than or equal to five nodes positive, none larger than 2 cm in greatest dimension. N2: Testicular cancer with metastasis with a lymph node mass larger than 2 cm but not larger than 5 cm in greatest dimension; or more than five nodes positive, none larger than 5 cm; or evidence of extranodal extension of tumor. N3: Testicular cancer with metastasis with a lymph node mass larger than 5 cm in greatest dimension. M0: Testicular cancer without evidence of distant metastasis. M1a: Testicular cancer with non-retroperitoneal nodal or pulmonary metastases. S2: LDH 1.5-10 x N or hCG (mlU/mL) 5,000-50,000 or AFP (ng/mL) 1,000-10,000. N indicates the upper limit of normal for the LDH assay. (AJCC 8th ed.)