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Immunohistochemical Detection of Lymph Nodes Micrometastases in Patients of Pathologic Stage I Non-small-cell Lung Cancer  

Ryu, Jeong-Seon (Department of Internal Medicine, College of Medicine, Inha University)
Han, Hye-Seung (Department of Pathology, College of Medicine, Konkuk University)
Kim, Min-Ji (Department of Internal Medicine, College of Medicine, Inha University)
Kwak, Seung-Min (Department of Internal Medicine, College of Medicine, Inha University)
Cho, Jae-Hwa (Department of Internal Medicine, College of Medicine, Inha University)
Yoon, Yong-Han (Department of Chest Surgery, College of Medicine, Inha University)
Lee, Hong-Lyeol (Department of Internal Medicine, College of Medicine, Inha University)
Chu, Young-Chae (Department of Pathology, College of Medicine, Inha University)
Kim, Kwang-Ho (Department of Chest Surgery, College of Medicine, Inha University)
Publication Information
Tuberculosis and Respiratory Diseases / v.57, no.4, 2004 , pp. 345-350 More about this Journal
Abstract
Background : To evaluate the frequency and clinical significance of lymph node micrometastasis in patients of non-small-cell lung cancer pathologically staged to be T1-2,N0. Method : From consecutive 29 patients of non-small-cell lung cancer who received curative operation and routine systemic nodal dissection, we immunohistochemically examined 806 lymph nodes from mediastinal, hilar and peribronchial lesion. All slides were stained with hematoxylin and eosin staining for one section and with cytokeratin AE1/AE3 antibody for another consecutive section of same lymph node to find out micrometastasis. Results : In 806 lymph nodes examined, no tumor cell was seen on hematoxylin and eosin staining and micrometastic foci were shown to be on 0.37%(3) of 806 lymph nodes, in which were upper paratracheal, interlobar and peribronchial lymph node. These three positive stains constitute 10.3%(3) of the 29 patients with non-small-cell lung cancer. Nine patients died from disease progression(4), postoperative complication(3) and concomitant diseases(2). The four patients with disease progression did not show evidence of micrometastasis on their lymph node examination. Conclusion : The frequency of lymph node micrometastasis was in 0.37% of 806 lymph nodes examined. The study results might suggested that routine analysis of micrometastasis on the lymph node didn't give any clinical implication on patients with non-small-cell lung cancer.
Keywords
Lung cancer; Lymphatic metastasis; Micrometastasis;
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