Parakeratotic Hyperkeratotic Flashcards
(5 cards)
1
Q
Definition
A
Excessive production of atypical and immature keratin
Affects malpighi epithelia
Skin and the mucous membranes (oral, esophageal, vaginal)
Ortokerarotic (without nuclei)
Parakeratotic (retained nuclei)
2
Q
Etiology
A
Primary: vitA and zn deficiency
Congenital form in cattles
In esophageal mucosa, occurs injury through reflux of gastric acid
Secondary: low free fatty acids, alterations of the intestinal flora, bacterias and virus
3
Q
Gross
A
Skin: thickened, rough
Epithelial mucosa: loses its smooth, shine and becomes dull and white
On mucous membrane appears a thin, yellowish and shiny membrane
4
Q
Micro
A
Incomplete keratinized cells
Cells with vacuolar degeneration
5
Q
Evo
A
Zinc suplementation, gastric ulcer, bacterial dermatitis
