Homogeneous white patch of the buccal mucosa
49-year-old male
§Chief complaint
White patch inside the cheek noticed by the dentist
§Medical & dental history
- 01Smokes 15 cigarettes daily for 25 years
- 02No systemic illness
- 03Regular attender
- 04No cheek-biting habit reported
§Clinical examination
- 01Well-demarcated homogeneous white plaque 20 x 12 mm on the right buccal mucosa
- 02Does not rub off with gauze
- 03Surface smooth, no induration, no ulceration
- 04No cervical lymphadenopathy
§ figuresFigures (3)
Fig. 1Photo taken of patient, who will remain anonymous, treated at the University of Tennessee Health Science Center: College of Dentistry in Memphis, Tennessee. The lesion is an example of leukoplakia. Biopsy was going to be
“Leukoplakia02-04-06” · Photo uploaded by: dozenist. · CC BY-SA 3.0 · Wikimedia Commons
Fig. 2These images are part of the 2013 publication from the NIH "Detecting Oral Cancer: A Guide for Health Care Professionals". Available on the 15/7/14 at https://www.nidcr.nih.gov/oralhealth/topics/oralcancer/detectingoralc
“NIH DOC 17 Leukoplakia” · BodyParts3D/Anatomography · Public domain · Wikimedia Commons
Fig. 3Title Leukoplakia Description Gum damage caused by leukoplakia (with white patches shown). Leukoplakia are patches on the tongue, in the mouth, or on the inside of the cheek that occur in response to long-term irritation
“Leukoplakia” · Unknown photographer · Public domain · Wikimedia Commons
Verified open-access images only, reproduced for education under their stated licences · no AI-generated or illustrative artwork · Leukoplakia figures pending faculty review.
§Differential diagnosis
§Final diagnosis
Oral leukoplakia, homogeneous type, with mild epithelial dysplasia
The patch cannot be wiped off, has no identifiable frictional cause, and is unilateral — excluding candidiasis and lichen planus. Leukoplakia is a clinical diagnosis of exclusion; biopsy grades the dysplasia and drives follow-up intensity.
§Investigations
- 01Incisional biopsy of the most suspicious area
- 02Smoking cessation referral and 2-week re-review after removal of possible irritants
- 03Photographic documentation with a scale
§Treatment plan
- 01Tobacco cessation counselling
- 02Surgical excision or laser ablation of the dysplastic area
- 03Structured surveillance every 3-6 months
§Surgical procedure
- 01CO2 laser vaporisation after excisional biopsy of the thickest area
§Histopathology report
Hyperkeratotic squamous epithelium with basal cell hyperplasia, mild nuclear hyperchromatism confined to the lower third. Mild epithelial dysplasia. No invasion.
§Follow-up & outcome
- 01Patch resolved after 4 months of abstinence and laser treatment
- 026-monthly review; no recurrence at 2 years
§Clinical pearls / learning points
- 01Non-homogeneous (speckled, nodular, verrucous) leukoplakia carries a far higher malignant transformation risk than homogeneous.
- 02Floor of mouth and ventrolateral tongue are the highest-risk sites regardless of appearance.
- 03Excision does not remove the risk of transformation — surveillance continues.
§ evidenceReferences & Evidence
Current Classification
WHO Classification of Head and Neck Tumours
5th Edition — Volume 9
WHO Classification of Tumours Editorial Board · 2022
The authoritative international classification of head and neck, odontogenic and salivary gland tumours. Current terminology on this site follows this edition.
Evidence summary
Highest level of evidence linked to this page: WHO / Official Classification.
- L1 · Classification — 2
- L2 · Guideline — 1
- L3 · Systematic review — 1
- L6 · Textbook — 3
1 linked source was published from 2024 onwards. Where guidance is limited or contested, rely on the higher-level sources above rather than this summary. Educational use only — not a substitute for clinical judgement.
Content last reviewed
September 2026
Evidence last reviewed
September 2026
Next scheduled review
September 2027
Review status
EVIDENCE REVIEWED
Search latest PubMed evidence
Last literature search: 7 September 2026
Current Classification
WHO Classification of Tumours Editorial Board. IARC / World Health Organization · 2022
The authoritative international classification of head and neck, odontogenic and salivary gland tumours. Current terminology on this site follows this edition.
IARC / WHO. IARC · 2022
Continuously updated online edition of the WHO head and neck tumour classification.
Clinical Guidelines
Warnakulasuriya S, Kujan O, Aguirre-Urizar JM et al.. Oral diseases · 2021 · 27(8):1862-1880
WHO collaborating centre consensus on nomenclature and classification of oral potentially malignant disorders.
Systematic Reviews & Meta-Analyses
Walsh T, Liu JL, Brocklehurst P et al.. The Cochrane database of systematic reviews · 2013 · 2013(11):CD010173
Cochrane review of conventional oral examination and adjuncts for detecting oral cancer and potentially malignant disorders.
Histopathology References
Barnes L. CRC Press · 2008
Detailed histopathological reference for head and neck diagnostic criteria.
Textbook References
Neville BW, Damm DD, Allen CM et al.. Elsevier · 2024
Standard reference textbook of oral and maxillofacial pathology used throughout this atlas.
Rajendran R, Sivapathasundharam B. Elsevier · 2020
Undergraduate and postgraduate oral pathology textbook widely used in BDS and FCPS curricula.
Additional sources cited on this page
- Warnakulasuriya S et al. Oral potentially malignant disorders. Oral Dis. 2021.
- WHO Classification of Head and Neck Tumours, 5th ed. (2022).
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