Psoriasis Flashcards
What is Psoriasis?
Patho?
- Chronic, systemic inflammatory disorder that primarily effects the skin & sometimes joints
- Immune process secondary to overactive T-cells resulting in hyperproliferation of keratinocytes in the epidermis
What’re the different types of Psoriasis?
- Plaque type (M/C)
- Guttate
- Inverse (skin folds)
- Pustular
- Erythrodermic
Dry, thick silverly scaly plaques that are itchy +/- nail pitting/oil spots
Psoriasis
What is Koebners phenomenon?
Appearance of skin lesions at site of trauma (seen in Psoriasis)
What is Auspitz sign in Psoriasis?
Punctate bleeding when scales are scraped off
How do you treat Psoriasis?
- Topical steroids
- Vitamin D Analogues like Calcipotriene
- Phototherapy
- Systemic agents
- Biologics
Yellow “greasy” scales
Seborrheic Dermatitis “Dandruff”
What are the different types of Lichen Planus (idiopathic inflammatory disorder of the skin)?
- Papular
- Hypertrophic
- Follicular
- Oral
- Nail
What’re the 5 P’s of Papular Lichen Planus?
- Pruritic
- Purple
- Papules
- Polygonal
- Planar
“Wickham’s Striae”
Lichen Planus
Where is Lichen Planus m/c found?
Flexor surfaces
What meds can cause a Lichen Planus eruption?
- Thiazide diuretics
- ACE-I
- Gold
- Antimalarials
How do you treat Lichen Planus?
- 1st line = Topical/IL steroids
- NBUVB light therapy
“Herald patch” (single red oval plaque) –> “Christmas tree” pattern
Pityriasis Rosea: papulosquamous eruption usu. confined to trunk & proximal extremities that’s treated symptomatically
