title: Tumor angiogenesis as a prognostic indicator in T2-T4 oral cavity squamous cell carcinoma: a clinical-pathologic correlation.
abstract: BACKGROUND
  Tumor angiogenesis has been shown to correlate with tumor size, metastatic potential, and prognosis in breast and other cancers. Studies in head and neck cancer have suggested a similar correlation, but results have been inconclusive. This study was performed to determine the correlation between angiogenesis and oral tumor behavior.
  
  
  METHODS
  Tumor angiogenesis was evaluated in 31 T2-T4 primary oral cavity squamous cell carcinomas by quantitating the microvessel density with two different anti-endothelial cell antigens, factor VIII antigen (FVIIIAg) and CD-31. The stains were compared to assess whether these antigens yielded complimentary results. The microvessel densities were correlated with T stage and N stage and patient survival.
  
  
  RESULTS
  FVIIIAg and CD-31 staining yielded consistent microvessel densities, but FVIIIAg was generally more uniform and easier to interpret. Increasing microvessel density was seen with increasing T stage and N stage; however, there was considerable overlap and no correlation with survival.
  
  
  CONCLUSIONS
  These results suggest that oral tumors are less angiogenesis dependent than tumors in other sites. Tumor angiogenesis, as currently measured, is not of value in predicting tumor aggressiveness in patients with oral cavity carcinoma.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati Medical Center, Ohio 45267-0528, USA.
authors.forename: L L
authors.initials: LL
authors.lastname: Gleich
authors.forename: P W
authors.initials: PW
authors.lastname: Biddinger
authors.forename: F D
authors.initials: FD
authors.lastname: Duperier
authors.forename: J L
authors.initials: JL
authors.lastname: Gluckman
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis; D002294:Carcinoma, Squamous Cell / Q000098:blood supply* / Q000401:mortality / Q000473:pathology; D005169:Factor VIII / Q000032:analysis; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008207:Lymphatic Metastasis; D008297:Male; D009062:Mouth Neoplasms / Q000098:blood supply* / Q000401:mortality / Q000473:pathology; D009367:Neoplasm Staging; D009389:Neovascularization, Pathologic / Q000473:pathology*; D019408:Platelet Endothelial Cell Adhesion Molecule-1 / Q000032:analysis; D011379:Prognosis; D015996:Survival Rate; D014062:Tongue Neoplasms / Q000098:blood supply / Q000401:mortality / Q000473:pathology
chemical_list: D014408:Biomarkers, Tumor; D019408:Platelet Endothelial Cell Adhesion Molecule-1; D005169:Factor VIII