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Red and white lession according to burkit
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Burkitt classification red and white oral lesions dental
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"Burkitt" oral medicine "red lesions" "white lesions" classification table
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Burket's Oral Medicine red white lesions classification allergic infectious developmental neoplastic
I now have the full Burket's Oral Medicine classification from the primary source. Here is the complete, detailed answer:
Red and White Lesions - According to Burket's Oral Medicine
Note: The reference is Burket's Oral Medicine (named after Lester W. Burket), not "Burkitt." This is the standard dental oral medicine textbook.
Why Lesions Appear White
Whiteness of oral mucosa results from:
- Keratinization of normally non-keratinized mucosa
- Increased keratinization of normally keratinized mucosa
- Abnormal keratinization (dyskeratosis)
- Thickening of the epithelium / epithelial edema
- Fibrosis or reduced vascularity of the underlying lamina propria
Why Lesions Appear Red
Redness results from:
- Vasodilation (increased blood vessel diameter)
- Atrophy of the epithelium (thin epithelium allows underlying vasculature to show through)
- Increased vascularization
- Decreased number of epithelial cells / reduced keratinization
Burket's Classification of Red and White Lesions
Burket's Oral Medicine (Chapter 5) organizes these lesions into four major categories:
1. Hereditary / Developmental White Lesions
| Condition | Key Features |
|---|---|
| Leukoedema | Diffuse, grayish-white, filmy appearance of buccal mucosa; disappears on stretching; considered a normal variant |
| White Sponge Nevus (WSN) | Autosomal dominant; thick, spongy, white corrugated plaques on buccal mucosa bilaterally; benign; appears in childhood |
| Hereditary Benign Intraepithelial Dyskeratosis (HBID) | White spongy plaques on buccal/labial mucosa + ocular (bulbar conjunctival) plaques; AD; appears in first year of life |
| Dyskeratosis Congenita | Oral leukoplakia + nail dystrophy + skin pigmentation (triad); X-linked; high malignant transformation risk |
2. Reactive / Inflammatory White Lesions
| Condition | Key Features |
|---|---|
| Linea Alba | Thin, white horizontal line on buccal mucosa at the occlusal plane; frictional; benign |
| Frictional (Traumatic) Keratosis | White patch at site of chronic trauma; resolves when irritant removed |
| Cheek Chewing (Morsicatio) | Ragged, shredded white mucosa due to habitual chewing; buccal/labial mucosa |
| Chemical Injuries | Aspirin burn, trichloroacetic acid, etc. - white necrotic plaques; history is diagnostic |
| Actinic Keratosis / Cheilitis | Lower lip; dry, cracked, white/gray plaques from UV exposure; premalignant |
| Smokeless Tobacco-Induced Keratosis | White, wrinkled, corrugated lesion in the vestibule where tobacco is placed; low-grade dysplasia possible |
| Nicotine Stomatitis | Hard palate; diffuse whitening with red central dots (inflamed minor salivary duct orifices); pipe smokers |
| Sanguinaria-Induced Leukoplakia | Associated with sanguinaria-containing toothpaste/mouthwash; floor of mouth/vestibule |
3. Infectious White Lesions and White-Red Lesions
| Condition | Key Features |
|---|---|
| Oral Hairy Leukoplakia (OHL) | EBV-associated; white, vertical corrugations on lateral borders of tongue; cannot be wiped off; seen in HIV/immunosuppression |
| Candidiasis | Multiple types: |
| - Pseudomembranous (Thrush) | Creamy-white removable plaques; leaves erythematous base when wiped |
| - Erythematous (Atrophic) | Red, burning lesions; acute (post-antibiotic) or chronic (denture stomatitis) |
| - Chronic Hyperplastic (Candidal Leukoplakia) | White plaque that cannot be wiped off; hyphae invade epithelium; premalignant potential |
| - Median Rhomboid Glossitis | Atrophic red diamond-shaped area on dorsal tongue midline |
| Mucous Patches | Secondary syphilis; painless, gray-white erosions with erythematous halo; highly infectious |
| Parulis | Red nodule (gum boil) overlying a draining sinus tract from a periapical or periodontal abscess |
4. Idiopathic / Potentially Malignant Lesions
Leukoplakia (True / Idiopathic)
- Definition (WHO): "A white patch or plaque that cannot be scraped off and cannot be characterized clinically or pathologically as any other disease"
- Cause unknown (tobacco is major risk factor, but not required for diagnosis)
- Varieties:
- Homogeneous - flat, thin, uniformly white; lower malignant risk
- Non-homogeneous - verrucous, nodular, or speckled (erythroleukoplakia); higher risk
- Dysplasia in 5-25% of cases
- Annual malignant transformation: ~1-2%
Erythroplakia
- Definition (WHO): "A fiery red patch that cannot be characterized clinically or pathologically as any other definable disease"
- Less common than leukoplakia, but far more dangerous
- ~90% show severe dysplasia, carcinoma in situ, or invasive carcinoma on biopsy
- Appears as a red, velvety, flat or slightly depressed lesion
Speckled Erythroplakia (Erythroleukoplakia)
- Combined red and white areas
- Risk is similar to erythroplakia - treat as high suspicion for dysplasia/malignancy
5. Immune-Mediated / Dermatologic Red-White Lesions
These are covered in later chapters of Burket's:
| Condition | Appearance |
|---|---|
| Lichen Planus | Reticular (Wickham's striae), erosive, atrophic, bullous, or plaque forms; buccal mucosa most common; erythematous erosions with white lace-like borders |
| Lupus Erythematosus (DLE/SLE) | Central atrophic red area with radiating white striae and erythematous border; resembles lichen planus |
| Lichenoid Drug Reactions | Clinically identical to lichen planus; associated with NSAIDs, antihypertensives, antimalarials |
Quick Memory Aid
| Color | Mechanism | Key Examples |
|---|---|---|
| White | Hyperkeratosis, acanthosis, epithelial thickening | Leukoplakia, linea alba, OHL, candida, WSN |
| Red | Atrophy, vasodilation, loss of keratin | Erythroplakia, atrophic candidiasis, erythematous LP |
| Mixed | Both mechanisms | Speckled erythroplakia, erosive lichen planus, DLE |
High-yield exam point: Erythroplakia carries the highest malignant risk (~90% dysplastic or malignant on biopsy). Among white lesions, non-homogeneous leukoplakia and speckled erythroplakia carry significantly higher risk than homogeneous leukoplakia.
Sources: Burket's Oral Medicine, Chapter 5 - Bhattacharyya, Cohen, Silverman; Robbins & Kumar Pathologic Basis of Disease, p. 684
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