eMedicine Specialties > Dermatology > Diseases of the Oral Mucosa

Leukoplakia, Oral: Follow-up

Author: Crispian Scully, MD, PhD, DSc, FRCPath, MRCS, CBE, MDS, FDSRCS, FDSRCPS, FFDRCSI, FDSRCSE, FMedSci, FHEA, FUCL,DSc, DChD, DMed(HC), Dr hc., Professor, Director of Special Projects, Eastman Dental Institute for Oral Health Care Sciences; Professor, Special Needs Dentistry, University College; Professor, Oral Medicine, Pathology and Microbiology, University of London
Contributor Information and Disclosures

Updated: Oct 17, 2008

Follow-up

Further Outpatient Care

  • Examine patients with leukoplakias regularly at 3- to 6-month intervals.
  • Detection of clinical changes, such as erosions or nodule formation, warrants a biopsy. An oral brush biopsy may be helpful in detecting dysplasia.

Deterrence/Prevention

  • Counsel patients against tobacco use. The percentage of nonsmokers who develop malignancy in a leukoplakia is greater than the percentage of smokers who develop a malignancy in a leukoplakia; however, the condition is more common in smokers such that the overall number of malignancies that arise in leukoplakias is greater in smokers.
  • Advise patients to avoid alcohol use.
  • Advise patients to eat a diet high in fresh fruits and vegetables.

Complications

  • Some leukoplakias are potentially malignant.
    • Dysplasia currently appears to be the best predictor of malignant potential. As many as 25% of leukoplakias are dysplastic at the first visit.
    • DNA ploidy studies may help predict outcomes.13
    • Malignant change appears to be more frequent among nonsmokers than among smokers.
  • A poorer prognosis is noted in the following:
    • Nonsmokers
    • Females
    • Moderate or severe epithelial dysplasia
    • Lesions in high-risk sites, such as the floor of the mouth

Prognosis

  • Estimates of malignant transformation vary from 3-33% over a 10-year period. However, many innocuous leukoplakias are not always followed up in some centers, and the studies are often small.
  • As many as 30% of leukoplakias can regress if habits are stopped.

Patient Education

  • Patients should avoid alcohol, tobacco, and betel.
  • Patients should consume a diet rich in fruits and vegetables.
  • For excellent patient education resources, visit eMedicine's Cancer and Tumors Center. Also, see eMedicine's patient education article Cancer of the Mouth and Throat.

Miscellaneous

Medicolegal Pitfalls

  • Misdiagnosis is possible if adequate biopsy specimens are not taken.
  • Early treatment is indicated, and complicating factors should be excluded.
 


More on Leukoplakia, Oral

Overview: Leukoplakia, Oral
Differential Diagnoses & Workup: Leukoplakia, Oral
Treatment & Medication: Leukoplakia, Oral
Follow-up: Leukoplakia, Oral
Multimedia: Leukoplakia, Oral
References

References

  1. Warnakulasuriya S, Johnson NW, van der Waal I. Nomenclature and classification of potentially malignant disorders of the oral mucosa. J Oral Pathol Med. Nov 2007;36(10):575-80. [Medline].

  2. Bouquot JE, Weiland LH, Kurland LT. Leukoplakia and carcinoma in situ synchronously associated with invasive oral/oropharyngeal carcinoma in Rochester, Minn., 1935-1984. Oral Surg Oral Med Oral Pathol. Feb 1988;65(2):199-207. [Medline].

  3. Bagan JV, Jimenez Y, Sanchis JM, Poveda R, Milian MA, Murillo J, et al. Proliferative verrucous leukoplakia: high incidence of gingival squamous cell carcinoma. J Oral Pathol Med. Aug 2003;32(7):379-82. [Medline].

  4. Bagán JV, Murillo J, Poveda R, Gavaldá C, Jiménez Y, Scully C. Proliferative verrucous leukoplakia: unusual locations of oral squamous cell carcinomas, and field cancerization as shown by the appearance of multiple OSCCs. Oral Oncol. Apr 2004;40(4):440-3. [Medline].

  5. Fisher MA, Bouquot JE, Shelton BJ. Assessment of risk factors for oral leukoplakia in West Virginia. Community Dent Oral Epidemiol. Feb 2005;33(1):45-52. [Medline].

  6. Allen CL, Loudon J, Mascarenhas AK. Sanguinaria-related leukoplakia: epidemiologic and clinicopathologic features of a recently described entity. Gen Dent. Nov-Dec 2001;49(6):608-14. [Medline].

  7. Eversole LR, Eversole GM, Kopcik J. Sanguinaria-associated oral leukoplakia: comparison with other benign and dysplastic leukoplakic lesions. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. Apr 2000;89(4):455-64. [Medline].

  8. Jiang WW, Fujii H, Shirai T, Mega H, Takagi M. Accumulative increase of loss of heterozygosity from leukoplakia to foci of early cancerization in leukoplakia of the oral cavity. Cancer. Nov 1 2001;92(9):2349-56. [Medline].

  9. Garewal HS, Katz RV, Meyskens F, Pitcock J, Morse D, Friedman S, et al. Beta-carotene produces sustained remissions in patients with oral leukoplakia: results of a multicenter prospective trial. Arch Otolaryngol Head Neck Surg. Dec 1999;125(12):1305-10. [Medline].

  10. Chiesa F, Tradati N, Sala L, Costa L, Podrecca S, Boracchi P, et al. Follow-up of oral leukoplakia after carbon dioxide laser surgery. Arch Otolaryngol Head Neck Surg. Feb 1990;116(2):177-80. [Medline].

  11. Chiesa F, Sala L, Costa L, Moglia D, Mauri M, Podrecca S, et al. Excision of oral leukoplakias by CO2 laser on an out-patient basis: a useful procedure for prevention and early detection of oral carcinomas. Tumori. Jun 30 1986;72(3):307-12. [Medline].

  12. Sudbø J, Lippman SM, Lee JJ, Mao L, Kildal W, Sudbø A, et al. The influence of resection and aneuploidy on mortality in oral leukoplakia. N Engl J Med. Apr 1 2004;350(14):1405-13. [Medline].

  13. Sudbø J, Kildal W, Risberg B, Koppang HS, Danielsen HE, Reith A. DNA content as a prognostic marker in patients with oral leukoplakia. N Engl J Med. Apr 26 2001;344(17):1270-8. [Medline].

  14. Abdel-Salam M, Mayall BH, Chew K, Silverman S Jr, Greenspan JS. Prediction of malignant transformation in oral epithelial lesions by image cytometry. Cancer. Nov 1 1988;62(9):1981-7. [Medline].

  15. Bouquot JE, Whitaker SB. Oral leukoplakia--rationale for diagnosis and prognosis of its clinical subtypes or "phases". Quintessence Int. Feb 1994;25(2):133-40. [Medline].

  16. Bánóczy J. Follow-up studies in oral leukoplakia. J Maxillofac Surg. Feb 1977;5(1):69-75. [Medline].

  17. Ikeda N, Ishii T, Iida S, Kawai T. Epidemiological study of oral leukoplakia based on mass screening for oral mucosal diseases in a selected Japanese population. Community Dent Oral Epidemiol. Jun 1991;19(3):160-3. [Medline].

  18. Jaber MA, Porter SR, Speight P, Eveson JW, Scully C. Oral epithelial dysplasia: clinical characteristics of western European residents. Oral Oncol. Sep 2003;39(6):589-96. [Medline].

  19. Kramer IR, Lucas RB, Pindborg JJ, Sobin LH. Definition of leukoplakia and related lesions: an aid to studies on oral precancer. Oral Surg Oral Med Oral Pathol. Oct 1978;46(4):518-39. [Medline].

  20. Kulasegaram R, Downer MC, Jullien JA, Zakrzewska JM, Speight PM. Case-control study of oral dysplasia and risk habits among patients of a dental hospital. Eur J Cancer B Oral Oncol. Jul 1995;31B(4):227-31. [Medline].

  21. Lumerman H, Freedman P, Kerpel S. Oral epithelial dysplasia and the development of invasive squamous cell carcinoma. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. Mar 1995;79(3):321-9. [Medline].

  22. Marley JJ, Linden GJ, Cowan CG, Lamey PJ, Johnson NW, Warnakulasuriya KA, et al. A comparison of the management of potentially malignant oral mucosal lesions by oral medicine practitioners and oral & maxillofacial surgeons in the UK. J Oral Pathol Med. Nov 1998;27(10):489-95. [Medline].

  23. McCarthy FP. Etiology, pathology and treatment of leukoplakia buccalis with a report of 316 cases. Arch Dermatol Syph. 1936;6:612-23.

  24. Pentenero M, Carrozzo M, Pagano M, Galliano D, Broccoletti R, Scully C, et al. Oral mucosal dysplastic lesions and early squamous cell carcinomas: underdiagnosis from incisional biopsy. Oral Dis. Mar 2003;9(2):68-72. [Medline].

  25. Sankaranarayanan R, Nair MK, Mathew B, Balaram P, Sebastian P, Dutt SC. Recent results of oral cancer research in Kerala, India. Head Neck. Mar-Apr 1992;14(2):107-12. [Medline].

  26. Schepman K, der Meij E, Smeele L, der Waal I. Concomitant leukoplakia in patients with oral squamous cell carcinoma. Oral Dis. Jul 1999;5(3):206-9. [Medline].

  27. Schepman KP, van der Waal I. A proposal for a classification and staging system for oral leukoplakia: a preliminary study. Eur J Cancer B Oral Oncol. Nov 1995;31B(6):396-8. [Medline].

  28. Sciubba JJ. Oral leukoplakia. Crit Rev Oral Biol Med. 1995;6(2):147-60. [Medline].

  29. Scully C, Cawson RA. Potentially malignant oral lesions. J Epidemiol Biostat. 1996;1:3-12.

  30. Scully C, Sudbø J, Speight PM. Progress in determining the malignant potential of oral lesions. J Oral Pathol Med. May 2003;32(5):251-6. [Medline].

  31. Silverman S Jr, Gorsky M, Lozada F. Oral leukoplakia and malignant transformation. A follow-up study of 257 patients. Cancer. Feb 1 1984;53(3):563-8. [Medline].

  32. Szpirglas H. [Detection of oral cancers and current conception of precancerous conditions]. Rev Prat. Apr 1 1995;45(7):831-7. [Medline].

  33. van der Waal RI, Pas HH, Nousari HC, Schulten EA, Jonkman MF, Nieboer C, et al. Paraneoplastic pemphigus caused by an epithelioid leiomyosarcoma and associated with fatal respiratory failure. Oral Oncol. Jul 2000;36(4):390-3. [Medline].

  34. Waldron CA, Shafer WG. Leukoplakia revisited. A clinicopathologic study 3256 oral leukoplakias. Cancer. Oct 1975;36(4):1386-92. [Medline].

  35. Wright JM. Oral precancerous lesions and conditions. Semin Dermatol. Jun 1994;13(2):125-31. [Medline].

  36. Zavras AI, Laskaris C, Kittas C, Laskaris G. Leukoplakia and intraoral malignancies: female cases increase in Greece. J Eur Acad Dermatol Venereol. Jan 2003;17(1):25-7. [Medline].

Further Reading

Keywords

oral leukoplakia, leukoplakia, oral cancer, mouth cancer, smokeless tobacco, keratosis,

Contributor Information and Disclosures

Author

Crispian Scully, MD, PhD, DSc, FRCPath, MRCS, CBE, MDS, FDSRCS, FDSRCPS, FFDRCSI, FDSRCSE, FMedSci, FHEA, FUCL,DSc, DChD, DMed(HC), Dr hc., Professor, Director of Special Projects, Eastman Dental Institute for Oral Health Care Sciences; Professor, Special Needs Dentistry, University College; Professor, Oral Medicine, Pathology and Microbiology, University of London
Crispian Scully, MD, PhD, DSc, FRCPath, MRCS, CBE, MDS, FDSRCS, FDSRCPS, FFDRCSI, FDSRCSE, FMedSci, FHEA, FUCL,DSc, DChD, DMed(HC), Dr hc. is a member of the following medical societies: Academy of Medical Science, British Society for Oral Medicine, International Association for Dental Research, and Royal Society of Medicine
Disclosure: Nothing to disclose.

Medical Editor

David P Fivenson, MD, Associate Director, St Joseph Mercy Hospital Dermatology Program, Ann Arbor, Michigan
David P Fivenson, MD is a member of the following medical societies: American Academy of Dermatology, Medical Dermatology Society, Michigan Dermatological Society, Michigan State Medical Society, Photomedicine Society, Society for Investigative Dermatology, and Wound Healing Society
Disclosure: Nothing to disclose.

Pharmacy Editor

Michael J Wells, MD, Associate Professor, Department of Dermatology, Texas Tech University Health Sciences Center
Michael J Wells, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Dermatology, American Medical Association, and Texas Medical Association
Disclosure: Nothing to disclose.

Managing Editor

Warren R Heymann, MD, Head, Division of Dermatology, Professor, Department of Internal Medicine, University of Medicine and Dentistry of New Jersey
Warren R Heymann, MD is a member of the following medical societies: American Academy of Dermatology, American Society of Dermatopathology, and Society for Investigative Dermatology
Disclosure: Nothing to disclose.

CME Editor

Joel M Gelfand, MD, MSCE, Medical Director, Clinical Studies Unit, Assistant Professor, Department of Dermatology, Associate Scholar, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania
Joel M Gelfand, MD, MSCE is a member of the following medical societies: Society for Investigative Dermatology
Disclosure: AMGEN Consulting fee Consulting; AMGEN Grant/research funds None; Genentech Consulting fee Consulting; Centocor Consulting fee Consulting; Centocor Grant/research funds None; Covance Consulting fee Consulting; Shire  Consulting

Chief Editor

Dirk M Elston, MD, Director, Department of Dermatology, Geisinger Medical Center
Dirk M Elston, MD is a member of the following medical societies: American Academy of Dermatology
Disclosure: Nothing to disclose.

 
 
HONcode

We subscribe to the
HONcode principles of the
Health On the Net Foundation

All material on this website is protected by copyright, Copyright© 1994- by Medscape.
This website also contains material copyrighted by 3rd parties.

DISCLAIMER: The content of this Website is not influenced by sponsors. The site is designed primarily for use by qualified physicians and other medical professionals. The information contained herein should NOT be used as a substitute for the advice of an appropriately qualified and licensed physician or other health care provider. The information provided here is for educational and informational purposes only. In no way should it be considered as offering medical advice. Please check with a physician if you suspect you are ill.