title: A comparison of the prognostic significance of tumor diameter, length, width, thickness, area, volume, and clinicopathological features of oral tongue carcinoma.
abstract: BACKGROUND
  The present study aims at evaluation of the prognostic value of tumor size including diameter, length, thickness, width, area, and volume in the prediction of nodal metastasis, local recurrence, and survival of oral tongue carcinoma. The results will have important implications for the management of patients.
  
  
  METHODS
  Eighty-five glossectomy specimens of oral tongue carcinoma were serially sectioned in 3 mm thickness for the tumor size evaluation with computer image analyzer.
  
  
  RESULTS
  Among all the tumor size parameters being evaluated, tumor thickness was the only significant factor for the prediction of local recurrence, nodal metastasis, and survival. With the use of 3 mm and 9 mm division, tumor of up to 3 mm thickness has 10% nodal metastasis, 0% local recurrence, and 100% 5-year actuarial disease-free survival; tumor thickness of more than 3 mm and up to 9 mm has 50% nodal metastasis, 11% local recurrence, and 77% 5-year actuarial disease free survival; tumor of more than 9 mm has 65% nodal metastasis, 26% local recurrence, and 60% 5-year actuarial disease-free survival.
  
  
  CONCLUSIONS
  Tumor thickness should be considered in the management of patients with oral tongue carcinoma.
authors.affiliation: Department of Surgery, University of Hong Kong, Queen Mary Hospital, Hong Kong, China.
authors.forename: A P
authors.initials: AP
authors.lastname: Yuen
authors.forename: K Y
authors.initials: KY
authors.lastname: Lam
authors.forename: W I
authors.initials: WI
authors.lastname: Wei
authors.forename: K Y
authors.initials: KY
authors.lastname: Lam
authors.forename: C M
authors.initials: CM
authors.lastname: Ho
authors.forename: T L
authors.initials: TL
authors.lastname: Chow
authors.forename: W F
authors.initials: WF
authors.lastname: Yuen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000401:mortality / Q000473:pathology*; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D011379:Prognosis; D015996:Survival Rate; D014062:Tongue Neoplasms / Q000401:mortality / Q000473:pathology*