Skin Symptoms Flashcards
Most common cutaneous symptom
Pruritus
Mediators of Itch
Histamine, Serotonin endopeptidases neuropeptidases neuropeptides eicosanoids
Lichen planus
4 Ps Pruritic Polygonal Purplish papules
patchy baldness which may be solitary or several that typically begins with rapid hair loss on discrete areas of the scalp
exclamation point hairs
Alopecia areata
total loss of scalp hair
Alopecia totalis
loss of both body and scalp hair
alopecia universalis
male pattern baldness, recession begins both temples
androgenetic alopecia
inc shedding of hair resulting from early entry into telogen phase
telogen effluvium
resting phase of the hair follicle when hair hair strands are shed off
telogen phase
causes of telogen effluvium
pregnancy oral contraceptives major surgical procedure major traumatic injury crash dieting significant medical illness
Green/yellow-green fluorescence with Wood’s lamp
ectothrix infection
can also be scarring
tinea capitis
endothrix
(-) fluorescence with wood’s lamp
can cause inflammation and deteriorate into abscess
Kerion
transverse splitting into layers or near free edge
Onychoschizia
longitudinal ridging and splitting of the free edge
Onychorrhexis
punctuate depressions on the surface of the nail caused by: psoriasis atopic dermatitis alopecia areata aczema lichen planus trauma
nail pitting
Presence of misshapen, partially or completely destroyed nail plates caused by: psoriasis onychomycosis trauma
dystrophic nails
orange-brown or tan-brown spot
can be yellowish
oil spots of psoriasis
normal in black/brown skinned person
melanocytic nevus in white persons
periungual skin aka Hutchinson sign r/o rute out melanoma
Brown linear band
transverse depressions across the fingernails
occur in acute stress such as MI, hypotension, shock, injury to the nail, malnutrition, severe infection
occurs 1 1/2 - 3 months after stressful event
Beau’s line
dilated capillaries around the nail
periungual telangiectasia
bulbous enlargement and broadening of the fingertips
lovibond angle exceeds 180 degrees
(n= 160 degrees)
autosomal dominant trait
acquired: cardiac disease, pulmonary disease, GIT disease
Clubbing
severe form of erythema mutliforme
erythema, painful erosion of lips and buccal mucosa
Stevens-Johnsons Syndrome
separation of epidermis from dermis
<10 %
sJS
separation of epidermis from dermis
> 30%
Toxic epidermal necrolysis
