white lesions Flashcards
1
Q
white lesions
A
clinical description of an entity which appears more pale or white in color than the surrounding tissues
2
Q
why do white lesions appear white?
A
diminished role of blood vessels in coloring lesions
3
Q
why do white lesions appear white
A
- membrane or plaque covering mucosa
- hyperkeratosis
- hyperplasia
- accumulation of fluid within epithelium (not increase in cells, btu the fluid bc it keeps the coloration of rbcs from shining through
- alteration of epithelium
4
Q
hyperkeratosis
A
thickened keratin layer
5
Q
hyperplasia
A
thickened spinous layer
6
Q
orthokeratin
A
no nuclei
7
Q
parakeratin
A
nuclei
8
Q
white lesions that can be scraped off
A
candidiasis
9
Q
white lesions that cannot be scraped of
A
linea alba morsicatio white coated tongue leukoedema lichen planus oral hairy leukoplakia smokeless tobacco lesion nicotinic stomatitis leukoplakia
10
Q
white lesions that can NOT be scraped off
A
- white sponge nevus
- hereditary benign intraepithelial dyskeratosis
- pacyonychia congenia
- dyskeratosis congenita
- oral submucous fibrosis
- darier disease
- warty dyskeratoma
