Table 1.

Lesion classes and corresponding oral diseases included within each class.

Class	Disease	Number of Lesions
Benign	Dermatologic diseases (geographic tongue, lichen planus, systemic lupus erythematosus, pemphigoid, erythema multiforme, pemphigus vulgaris)	90
	Fungal diseases (median rhomboid glossitis, candidal leukoplakia, pseudomembranous candidiasis)	33
	Inflammatory process (nicotine stomatitis, gingivitis, periodontitis, pericoronitis)	30
	Developmental defects (fissured tongue, thrush, hairy tongue, leukoedema, Fordyce granules)	24
	Ulcers (aphthous ulcer, traumatic ulcer, viral ulcers, TUGSE)	54
	Keratosis (reactive / traumatic keratosis, linea alba)	36
	Hairy leukoplakia	7
OPMD	Leukoplakia	156
	Erythroplakia	35
	Erythroleukoplakia	46
	Submucous fibrosis	11
Carcinoma	Squamous cell carcinoma	162