Psoriasis Flashcards
Define psoriasis
a chronic inflammatory skin disease, which has characteristic lesions and may be complicated by arthritis
risk factors for psoriasis?
- FAMILY HISTORY
- Psoriasis can be worsened (skin trauma, stress, beta-blockers)
- Psoriasis can be triggered by strep infection
- Psoriasis can be improved by sunlight
presenting symptoms of psoriasis?
• Typically new onset of well demarcated raised area with a silverly scale
- Auspitz phenomenon
- Koebner phenomenon
types of psoriasis?
• Discoid psoriasis
well-demarcated erythematous plaques with silvery scales
• Flexural psoriasis
less scaly plaques in axilla, groins, perianal and genital skin
• Guttate psoriasis
small drop-like lesions over trunk and limbs
• Palmoplantar psoriasis
erythematous plaques with pustules on palms and soles
• Generalised pustular psoriasis
pustules distributed over limbs and torso
what nail signs might present?
o Pitting
o Onycholysis
what joint signs might present?
o Dactylitis
o Distal interphalangeal joint predominance
o Prominent nail changes
investigations?
clinical diagnosis
