Scaling Disorders Flashcards
Psoriasis
pathophys
- hyperproliferation resulting in thick skin and excess scaling
- skin proliferation caused by cytokine release from immune cells
- exacerbationby environmental factors
Psoriasis
affects who?
two peaks of age groups
- 20 to 30 y/o
- 50 to 60 y/o
Psoriasis
Types of Psoriasis
5
- Plaque
- Inverse/Flexural
- Guttate
- Erythrodermic
- Pustular
Psoriasis
Describe appearance of plaque psoriasis
- well-demarcated, scaly, erythematous patches/plaques/papules
- overlying silvery-white scale
- Auspitz sign
- Koebner phenomenon
Psoriasis
define auspitz sign
bleeding after scale removal
Psoriasis
define koebner phenomenon
lesions induced by trauma to skin
Psoriasis
which meds are of signficance when taking pt’s history?
6
- systemic steroids
- beta blockers
- NSAIDs
- lithium
- anti-malarials
- interferons
Psoriasis
important history questions to ask
5
- what meds are you taking?
- do you have joint pain?
- any CV risk factors?
- any changes to your nails?
- any tobacco use or alcohol consumption?
Psoriasis
what types of psoriasis do you use topical steriods? side effects?
- all types
- skin atrophy, hypopigmentation, striae
Psoriasis
when do you supplement Calcipotriene tx? side effects?
- combo w/ topical steroids
- skin irritation, photosensitivity
Psoriasis
what type of psoriasis do you prescribe tazarotene for? use in combo with? side effects?
- plaque-type
- topical corticosteroids
- skin irritation, photosensitivity
Psoriasis
what type of psoriasis to use Coal tar for? side effects?
- plaque type
- skin irritation, ordor, staining of clothes
Psoriasis
when to use Calcineurin inhibitors for psoriasis? side effects?
- off-label use for facial and intertriginous psoriasis
- skin burning, itching
Seborrheic Dermatitis
Pathophys
- increase in sebaceous gland activity + hypersensitivity rxn to Malassezia furfur
Seborrheic Dermatitis
when is this more common? what worsens is?
1 & 3
- fall & winter months
- stress rxn
- HIV pts
- neurologic diseases