The system is based on the spread of the primary tumor (t), the extent of lymph node involvement (n), and the presence or absence of metastases (m).
系统包括三个部分：原发肿瘤的扩散程度(t)；淋巴结的转移程度(N)和是否有了其他器官的转移(M)。
T lymphocyte subsets in Peripheral Blood of new cases with osteoarticular tuberculosis were compared with those from 18 patients with malignant primary or metastatic bone tumor and 52 normal controls.
同时配对比较初治骨关节结核患者治疗前与治疗1月后外周血T淋巴细胞亚群的变化。结果：共有52例初治骨关节结核、18例恶性骨肿瘤及52例健康对照纳入本研究。
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