European Archives of Paediatric Dentistry

, Volume 14, Issue 3, pp 173–177 | Cite as

Radiographic assessment of a keratocystic odontogenic tumour using cone-beam computed tomography

  • H. U. BrauerEmail author
  • C. Diaz
  • G. Manegold-Brauer
Case Report



The keratocystic odontogenic tumour (KCOT), formerly known as the odontogenic keratocyst, is a benign intra-osseous odontogenic tumour. The KCOT is characterised by a potential for locally destructive behaviour and a relatively high recurrence rate. Most KCOT are incidentally discovered as well-defined unilocular or multilocular radiolucencies on routine panoramic radiographs.

Case report

A 15-year-old boy was referred to dental care with a non-syndromic KCOT in the right angle of the mandible. Using cone-beam computed tomography (CBCT) as a diagnostic instrument for precise assessment of the KCOT, the exact location of the lesion was determined.


The cystic formation was enucleated without peripheral ostectomy.


At post-operative follow-up after 3 and 6 months, the boy reported no pain and there was no residual swelling or fracture. Imaging was planned after 1 year to decide whether further surgical treatment is indicated.


The CBCT is considered beneficial in cases of cystic formations to determine the localisation and borders of the lesion in all three dimensions.


Keratocystic odontogenic tumour Odontogenic keratocyst Cone-beam computed tomography 


  1. American Dental Association Council on Scientific Affairs. The use of cone-beam computed tomography in dentistry: an advisory statement from the American Dental Association Council on Scientific Affairs. J Am Dent Assoc. 2012;143:899–902.Google Scholar
  2. Barnes L, Eveson JW, Reichart P, Sidransky D. World Health Organization classification of tumours. Pathology and genetics of head and neck tumours. Lyon, France: IARC Press; 2005.Google Scholar
  3. Buckley PC, Seldin EB, Dodson TB, August M. Multilocularity as a radiographic marker of the keratocystic odontogenic tumor. J Oral Maxillofac Surg. 2012;70:320–4.PubMedCrossRefGoogle Scholar
  4. De Vos W, Casselman J, Swennen GR. Cone-beam computerized tomography (CBCT) imaging of the oral and maxillofacial region: a systematic review of the literature. Int J Oral Maxillofac Surg. 2009;38:609–25.PubMedCrossRefGoogle Scholar
  5. Geneviève D, Walter E, Gorry P, et al. Gorlin syndrome presenting as prenatal chylothorax in a girl. Prenat Diagn. 2005;25:997–9.PubMedCrossRefGoogle Scholar
  6. Gorlin RJ, Goltz RW. Multiple nevoid basal-cell epithelioma, jaw cysts and bifid rib. A syndrome. N Engl J Med. 1960;262:908–12.PubMedCrossRefGoogle Scholar
  7. Grasmuck EA, Nelson BL. Keratocystic odontogenic tumor. Head Neck Pathol. 2010;4:94–6.PubMedCrossRefGoogle Scholar
  8. Güler N, Sençift K, Demirkol O. Conservative management of keratocystic odontogenic tumors of jaws. Sci World J. 2012;2012:680397.Google Scholar
  9. Hegde S, Shetty SR. Radiological features of familial Gorlin–Goltz syndrome. Imaging Sci Dent. 2012;42:55–60.PubMedCrossRefGoogle Scholar
  10. Kaczmarzyk T, Mojsa I, Stypulkowska J. A systematic review of the recurrence rate for keratocystic odontogenic tumour in relation to treatment modalities. Int J Oral Maxillofac Surg. 2012;41:756–67.PubMedCrossRefGoogle Scholar
  11. Kaneda T, Minami M, Kurabayashi T. Benign odontogenic tumors of the mandible and maxilla. Neuroimaging Clin N Am. 2003;13:495–507.PubMedCrossRefGoogle Scholar
  12. Koçak-Berberoğlu H, Çakarer S, Brkić A, et al. Three-dimensional cone-beam computed tomography for diagnosis of keratocystic odontogenic tumours: evaluation of four cases. Med Oral Patol Oral Cir Bucal. 2012;17(6):e1000–5.PubMedCrossRefGoogle Scholar
  13. Lopes NN, Caran EM, Lee ML, et al. Gorlin–Goltz syndrome and neoplasm: a case study. J Clin Pediatr Dent. 2010;35:203–6.PubMedGoogle Scholar
  14. MacDonald-Jankowski DS. Keratocystic odontogenic tumour: systematic review. Dentomaxillofac Radiol. 2011;40:1–23.PubMedCrossRefGoogle Scholar
  15. Myoung H, Hong SP, Hong SD, et al. Odontogenic keratocyst: review of 256 cases for recurrence and clinicopathologic parameters. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001;91:328–33.PubMedCrossRefGoogle Scholar
  16. Sharif FN, Oliver R, Sweet C, Sharif MO. Interventions for the treatment of keratocystic odontogenic tumours (KCOT), odontogenic cysts (OKC). Cochrane Database Syst Rev. 2010; Sep 8;(9):CD008464.Google Scholar

Copyright information

© European Academy of Paediatric Dentistry 2013

Authors and Affiliations

  1. 1.Centre for Dentistry, Implantology and Oral SurgeryLahrGermany
  2. 2.Centre for DermatopathologyFreiburgGermany
  3. 3.Ultrasound UnitUniversity Hospital of BaselBaselSwitzerland

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