even more factoids Flashcards
what is a rodent ulcer
BCC
central ulceration
what are the causes of erythema nodosum
TB and sarcoidossi
how to treat psoriasis
betnovate + vit D analogue
which types of sensitivity is contact dermatitis
4
how to treat dermatitis herpetiformis
gluten free diet
dapson
what is pityriassis versicolour
asymptomatic patches
like vitilogo
can be itchy - give antihistmines
what is seen as a flexural rash
atopic dermatitis / eczema
papillomatosis
irregular thickening of epithelium
acanthosis
increased thickening of epithelium
acantholysis
separation of individual keraitnocytes
hyperkeratosis
increased thickening of keratin layer
spongiosis
intracellular oedema in epidermis
macule
<1cm hyperpigmented flat lesion
nodule
rasied, well defined lesion >0.5cm
plaque
raised, flat topped lesions which grown horizontally and >1cm
vesicle
fluid filled lesions <0.5cm
erosion
superficial skin break in the epidermis
crust
yellow / brown
eg of calcineural inhibitors
tacrolimus
what is pomphylx eczema
exudative eczema restricted to hands and feet - forms watery blisters and severe itch
ectoderm forms -
exoskeleton
dermis
mesoderm forms
organs
epidermis
endoderm forms -
inner lining of organs
how many days does it take keratinocytes to get from basal layer to keratin layer
28 days
how is the basal layer connected to the lamina lucida
hemi desmosomes
what is the dermis composed of
mostly collagen
elastin
ground substance (gel like substance composed of glycoaminoglycnas)
which hypersensitivity causes an athurs reaction
3
which IGs mediate type 3
M and G
lichen planus histology
irregular sawtooth acanthosis
