title: Intraoral sonography-assisted resection of T1-2 tongue cancer for adequate deep resection.
abstract: OBJECTIVE
  To investigate the clinical usefulness of intraoral sonography-assisted resection for securing adequate deep resection margins in T1-2 tongue cancers.
  
  
  METHODS
  Prospective clinical trial.
  
  
  METHODS
  Twenty consecutive patients with clinical T1-2 tongue cancers were enrolled and their lesions were removed by intraoral sonography-assisted resection. We then retrospectively collected data from 20 T stage-matched patients without intraoral sonography-assisted resection as the control group. All resections were performed with a goal of 15 mm margin. The mucosal and deep safety margins were compared between the two groups.
  
  
  RESULTS
  Intraoral sonography could predict the paraffin-embedded tumor thickness with an error of 3.16 +/- 2.24 mm. The deep safety margins were more adequate for intraoral sonography-assisted resection (9.8 +/- 5.2 mm) than for conventional resection (4.0 +/- 2.03 mm) (P < 0.001), while the mucosal safety margins were not different.
  
  
  CONCLUSIONS
  Intraoral sonography-assisted resection provides a more adequate deep resection margin for early T-stage tongue cancers.
authors.affiliation: Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Chung-Hwan
authors.initials: CH
authors.lastname: Baek
authors.forename: Young-Ik
authors.initials: YI
authors.lastname: Son
authors.forename: Han-Sin
authors.initials: HS
authors.lastname: Jeong
authors.forename: Man Ki
authors.initials: MK
authors.lastname: Chung
authors.forename: Ki-Nam
authors.initials: KN
authors.lastname: Park
authors.forename: Young-Hyeh
authors.initials: YH
authors.lastname: Ko
authors.forename: Hyung-Jin
authors.initials: HJ
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D011446:Prospective Studies; D014062:Tongue Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome; D018084:Ultrasonography, Interventional