Skin Rashes Flashcards
nail pitting
small depressions of the nail plate
onycholysis
separation of nail from nail bed
hypertrichosis
general excess hair growth
hirsutism
excess hair growth in a male distribution
alopecia
hair loss
purpura
<1mm, may be raised, will not blanche, caused by leakage of blood from the vessels
petechiae
1-2mm, may be raised, will not blanche, caused by leakage of blood from the vessels
macule
localised flat colour change, <1cm
patch
localised flat colour change, >1cm
plaque
lesion with raised edge and flat surface
pustule
pus-filled raised lesion
vesicle
fluid-filled raised lesion <0.5cm
bulla
fluid-filled raised lesion >0.5cm
wheal
compressible dermal swelling
cyst
nodule containing semi-solid material
scale
accumulated fragments of keratin layer
crust
dried exudate e.g. serum
lichenified
thickening with increased skin markings
scar
normal tissue replaced by fibrous tissue
fissures
linear split in epidermis
erosion
superficial break in epidermis
ulcer
deep break into dermis
atrophy
loss of epidermis +/- dermis
discrete
lesions well-demarcated, individual lesions can be clearly seen
coalescing
individual lesions present but starting to merge together to form abnormal areas of skin
confluent
no normal skin visible
grouped
e.g. linear, in a line or annular, in a ring
