9- Interpretation of skin biopsies and their importance Flashcards
What is perivascular dermatitis
skin inflammation around the blood vessel
What are the characteristics of a perivascular dermatitis
prominent blood vessels
leukocytes around vessels
oedema of dermis
What degenerates in interface dermatitis
basal keratinocytes
What diseases are interface dermataits associated with
Immune mediated diseases
Vasculitis is inflammation of what
blood vessels
What is panniculitis
inflammation of subcutaneous adipose tissue
What is the most common diagnostic pattern- when is it seen
Perivascular dermatitis - but is the least specific
seen in canine atophy, pyoderma, FAD
What is intraepidermal vesicular/pustular dermatitis
clefting in epidermis –> vesicles or pustules
what can intraepidermal vesiculae/ pustular dermatitis be due to
epidermal inflammation/ spongiosis
ancantholysis
intracellular oedema
what is Subepidermal vesicular/pustular dermatitis
Separation of epidermis from dermis
is very rare
what can Separation of epidermis from dermis
be due to
autoimmune
thermal burns
severe dermal oedema
severe interface dermatitis
what is atrophic dermatosis
Atrophy of
-Epidermis
-Hair follicles, collagen
-Sebaceous glands
what can cause atrophic dermatosis
various endocrine causes
any chronic systemic disease or malnutrition
