Table 1.

Morphological classification of vocal fold leukoplakia.

Clinical type	Definition
Flat and smooth type	Surface: smooth Margin: lesion without raised margins, being continuous with the surrounding mucosa Texture: homogenous and regular, the lesion having even coloration
Elevated and smooth type	Surface: smooth Margin: lesion with raised margins, sharply demarcated from the surrounding mucosa Texture: homogenous and regular, the lesion having even coloration
Rough type	Surface: wrinkled, corrugated Margin: lesion with raised margins, sharply demarcated from the surrounding mucosa Texture: nonhomogenous and irregular, the lesion having uneven coloration, usually accompanied with erosion or ulceration