Table 2.

Summary of OCT features compared with clinical appearance for different forms of OLP in comparison to leukoplakia and OSCC by means of a clinical study of N = 15 patients.

Pathology	Clinical Appearance	OCT Features
Reticular OLP		increased EP surface reflectivity
	homogeneous smooth surface	reduced LP reflectivity
	whitish keratinization	limited BM visibility
		inconspicious vessel network
Reticular atrophic OLP		EP surface hyperreflectivity
	inhomogeneous OM surface	reduced EP thickness
	whitish reticular keratinization	reduced LP reflectivity
	marginal reddened surface	vague BM visibility
		reduced layer differentiation
		reduced nb. of large vessels
Atrophic OLP		EP hyporeflectivity
	inhomogeneous OM surface	no BM visibility
	predominant reddened surface	no layer differentiation
		enhanced vessel network
Atrophic erosive OLP		EP hyperreflectivity
	hyperkeratinization	reduced EP thickness
	ulcerative open wounds	limited BM visibility
	fibrin layer	reduced layer differentiation
		reduced nb. of large vessels
Plaque-like OLP		hyperreflective layer at EP
	hyperkeratinization	no BM visibility
	large whitish homogenous OM	no layer differentiation
		no vessel network identification
Leukoplakia		hyporeflective surface
	homogenous/inhomogeneous	distinct shadowing
	closed hyperkeratinization/	no BM visibility
	interrupted hyperkeratinization	no layer differentiation
		no vessel network identification
OSCC		hyperreflective EP surface
	uneven interrupted surface	strongly reduced imaging depth
	floe-like hyperkeratinization	cloud-like layered structure
	distinct ulceration	distinct shadowing
		no BM and layer visibility
		no vessel network identification