4 - 28 - PSORIASIS Flashcards
human leukocyte antigen (HLA) class associated with an earlier age of onset and with a positive family history
HLA-Cw6
Koebner reaction usually occurs how many days after injury
7 - 14 days
efers to lesions in the shape of a cone or limpet
Rupioid psoriasis
characterized by thickly scaling, large plaques, usually on the lower extremities
elephantine psoriasis
refers to a ringlike, hyperkeratotic concave lesion, resembling an oyster shell
Ostraceous psoriasis
This form of psoriasis has the strongest association to HLA-Cw6, and streptococcal throat infection frequently precedes or is concomitant with the onset or flare of this type of psoriasis
Guttate Psoriasis
resembles guttate psoriasis clinically but can be distinguished by its onset in older patients, by its chronicity, and by having somewhat larger lesions (typically 1–2 cm) that are thicker and scalier than in guttate disease.
Small plaque psoriasis
- Psoriasis lesions may be localized in the major skin folds, such as the axillae, the genitocrural region, and the neck.
- Scaling is usually minimal or absent, and the lesions show a glossy sharply demarcated erythema, which is often localized to areas of skin-to-skin contact
- Sweating is impaired in affected areas
INVERSE PSORIASIS
Nail changes are frequent in psoriasis, being found in up to how many % of patients
40%
has a stronger association with PsA than other nail changes
Onychodystrophy
nail finding considered to be nearly specific for psoriasis
oil spotting
Identify the nail segment involved:
Pitting, onychorrhexis, Beau’s lines
Proximal matrix
Identify the nail segment involved:
Leukonychia
Intermediate matrix
Identify the nail segment involved:
Cutaneous psoriasis
Proximal and lateral nail folds
Identify the nail segment involved:
“Oil drop” sign or “salmon patch,” subungual hyperkeratosis, onycholysis, splinter hemorrhages
Nail bed
Identify the nail segment involved:
Crumbling and destruction plus other changes secondary to the specific site
nail plate
Identify the nail segment involved:
Focal onycholysis, thinned nail plate, erythema of the lunula
Distal matrix
Identify the nail segment involved:
Subungual hyperkeratosis, onycholysis
Hyponychium
Geographic tongue, also known as benign migratory glossitis or glossitis areata migrans, is an idiopathic inflammatory disorder resulting in the local loss of what?
filiform papillae
Arthritis is a common extracutaneous manifestation of psoriasis seen in up to how many % of patients.
40%
