LesionDefinition
Leukoplakiaa white patch or plaque that does not rub off, and cannot be characterized clinically or pathologically as any other disease
Erythroplakiaa red patch that cannot be clinically or pathologically diagnosed as any other condition
Erythroleukoplakiaan area of leukoplakia that has red patches, also known as “speckled leukoplakia” or “leukoerythroplakia”
Lichen planuschronic dermatologic disease that also affects the mucosa of the mouth, of either reticular (interlacing white lines) or erosive (ulceration in center) type
OEDhistopathologically verified abnormality of development, in pathology, alteration in size, shape and organization of adult cells
Oral squamous cell carcinomahistopathologically verified malignant neoplasm characterized by the proliferation of anaplastic cells that tend to invade surrounding tissue and metastasize; virtually all arise from premalignant precursor lesions