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| | Staging System of Non-Small Cell Lung Cancer |
 | | Since determination of stage has important therapeutic and prognostic implications, careful initial diagnostic evaluation to define location and extent of primary and metastatic tumor involvement is critical for the appropriate care of patients. |
 | | The stage of disease is based on a combination of clinical (physical examination, radiologic, and laboratory studies) and pathologic (biopsy of lymph nodes, bronchoscopy, mediastinoscopy, or anterior mediastinotomy.[1] The distinction between clinical stage and pathologic stage should be considered when evaluating reports of survival outcome. |
 | | Stage II is divided into 2 categories by the size of the tumor and by the nodal status; IIA, T1N1M0 and IIB, T2N1M0. |
| www.cancerlinksusa.com /lung/tx_professional/stage.htm (876 words) |
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