title: Negative sentinel lymph node accurately predicts negative status of pelvic lymph nodes in uterine cervix carcinoma.
abstract: OBJECTIVE
  The significance of negative sentinel lymph nodes (SLN) is important in the staging and treatment of melanoma and a few other cancers, but is controversial in uterine cervix carcinoma. Our study was aimed at correlating the SLN status in cervical carcinoma with non-sentinel lymph nodes (non-SLN), in a uniform and well controlled population.
  
  
  METHODS
  This study includes 36 patients with stage I and IIA cervical carcinoma and bilaterally negative SLN on final pathology. SLN were identified using blue dye and radioisotopic techniques. Frozen section examination was performed for all SLN; the rest of the tissue was formalin fixed and paraffin embedded. The protocol used for SLN was also applied for non-SLN. For each block, six 4-micro m thick sections were cut at 40 micro m intervals and stained with H and E; an additional section taken between the 3rd and 4th levels was imunostained using AE1/AE3 cytokeratin.
  
  
  RESULTS
  The mean age for the study population was 39 years (range 25-76); the number of SLN ranged from 2 to 6 (mean 2.7) and the non-SLN from 8 to 49 (mean 23) per case. No metastasis was found in any SLN and non-SLN by step sections and IHC.
  
  
  CONCLUSIONS
  Our study demonstrates that bilaterally negative SLN on final pathology accurately predict the absence of metastases in non-SLN in cervical carcinoma. If confirmed by larger trials, these results may influence the clinical management of early cervical cancer.
authors.affiliation: Department of Pathology, l'Hôtel-Dieu de Quebec, Centre Hospitalier Universitaire de Quebec, Laval University, Quebec, Canada.
authors.forename: Ion
authors.initials: I
authors.lastname: Popa
authors.forename: Marie
authors.initials: M
authors.lastname: Plante
authors.forename: Marie-Claude
authors.initials: MC
authors.lastname: Renaud
authors.forename: Michel
authors.initials: M
authors.lastname: Roy
authors.forename: Bernard
authors.initials: B
authors.lastname: Têtu
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008875:Middle Aged; D009367:Neoplasm Staging; D011237:Predictive Value of Tests; D021701:Sentinel Lymph Node Biopsy / Q000379:methods; D002583:Uterine Cervical Neoplasms / Q000473:pathology*