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Inflammatory Dermatoses

Terms in this set (5)

atopic (eczematous) dermatitis
pruritic erythematous oozing rash w/ vesicles + edema on FLEXORS
- face
Type 1 hypersensitivity
assoc w/ asthma, allergic rhinitis
contact dermatitis
pruritic erythematous oozing rash w/ vesicles + edema (same!) following EXPOSURE to ALLERGEN
Type 4 hypersensitivity
acne vulgaris
increase sebum pdtion + increase keratin pdtion --> block follicles --> form comedones --> infection by Propionibacterium acnes = pdce lipases - break down sebum --> release proinflamm FAs --> pustule/nodule
psoriasis
well-circumscribed salmon-colored plaques w/ SILVERY SCALE
- on EXTENSORS, scalp
- possible autoimmune, a/w HLA-C
Histo:
- acanthosis
- parakeratosis
-Munro microabsscesses = collections of neutrophils in stratum corneum
- Auspitz sign = pinpoint bleeding when scales scraped off
Tx =
- corticosteroids, immune-modulating therapy
- PUVA = psoralen + UVA
lichen planus
6Ps:
Pruritic
Planar
Polygonal
Purple
Papules
Plaques
- hypergranulosis
- Wickham striae = reticular white lines
- SAWTOOTH appearance (inflamm at dermal-epidermal junction)
- a/w Hep C
THIS SET IS OFTEN IN FOLDERS WITH...