title: [Evaluation of lymph node metastasis in the contralateral mediastinum or scalene through mediastinoscopy and para-mediastinal small incision in potentially operable non-small cell lung cancer].
abstract: OBJECTIVE
  The purpose of this study was to investigate the clinical characteristics of lymph node metastasis in the contralateral mediastinum and scalene in patients with potentially operable nonsmall cell lung cancer (NSCLC).
  
  
  METHODS
  Cervical mediastinoscopy was performed for 89 patients with clinical stage I-III A non-small cell lung cancer prior to thoracotomy. Of these, 12 underwent cervical medistinoscopy combined with right scalene lymph node biopsy and 10 with anterior para-mediastinal small incision.
  
  
  RESULTS
  A total of 9 patients were found have N3 disease on mediastinosopy, with cancer-cell-positive lymph nodes in the contralateral mediastinum in 6 and 3 in the right scalene. Statistical analysis revealed that the incidence of N3 disease in adenocarcinoma group was higher than that in patients with nonadenocarcinoma (P < 0.05), which was also higher in the patients with serum CEA >5 ng/ml than that in the patients with CEA <5 ng/ml (P < 0.05), and it was higher in the patients with ipsilateral mediastinal multi-station lymph node metastasis than that in the patients with uni-station lymph node metastasis (P < 0.05).
  
  
  CONCLUSIONS
  Biopsy of contralateral mediastinal lymph nodes or scalene lymph node should be performed in order to exclude N3 disease for potentially operable NSCLC patients with adenocarcinoma, serum CEA >5 ng/ml or ipsilateral multi-station mediastinal lymph node metastasis.
authors.affiliation: State Key Laboratory of Oncology in South China, Department of Thoracic Surgery, Cancer Center, Sun Yat-Sen University, Guangzhou 510060, China.
authors.forename: Shi-yi
authors.initials: SY
authors.lastname: Zhang
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.forename: Tie-hua
authors.initials: TH
authors.lastname: Rong
authors.forename: Lie
authors.initials: L
authors.lastname: Zheng
authors.forename: Can-guang
authors.initials: CG
authors.lastname: Zeng
authors.forename: Ze-ming
authors.initials: ZM
authors.lastname: Xie
authors.forename: Hui
authors.initials: H
authors.lastname: Yu
authors.forename: Zhi-hua
authors.initials: ZH
authors.lastname: Zhu
mesh_terms: D000230:Adenocarcinoma / Q000097:blood / Q000473:pathology / Q000628:therapy; D000328:Adult; D000368:Aged; D001706:Biopsy; D002272:Carcinoembryonic Antigen / Q000097:blood; D002289:Carcinoma, Non-Small-Cell Lung / Q000097:blood / Q000473:pathology* / Q000628:therapy; D002294:Carcinoma, Squamous Cell / Q000097:blood / Q000473:pathology / Q000628:therapy; D017024:Chemotherapy, Adjuvant; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000097:blood / Q000473:pathology* / Q000628:therapy; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008481:Mediastinoscopy; D008482:Mediastinum; D008875:Middle Aged; D009334:Neck Muscles; D009367:Neoplasm Staging; D011013:Pneumonectomy
chemical_list: D002272:Carcinoembryonic Antigen