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E.
Vesicle
q
Blister
q
< 1
cm in diameter
q
Tense (looks like it is ready to pop since it is filled
w/ fluid)
q
Epidermal, dermal or both
q
Shape = oval, oblong, serpiginous (snake-like, wavy)
q
Appearance based on fluid within = clear, hemorrhagic,
or turbid
F.
Bullae
q
Blister
q
> 1
cm in diameter
q
Tense or flaccid
q
Epidermal, dermal, or both
q
Arises on normal or red skin
q
Shape = oval, oblong, serpiginous
q
Appearance = clear, hemorrhagic, turbid
G.
Pustule
q
Elevated, circumscribed pus
q
Follicular or non-follicular
q
Vesiculopustules = epidermal necrosis with secondary
neutrophils
H.
Nodule
q
Solid lesion
q
> 1
cm in diameter
q
Shape = raised, dome-shaped or rounded
q
Dermal or subcutaneous
q
Surface characteristic = smooth, ulcerated,
hyperkeratotic
I.
Tumor
q
Solid lesion
q
> 2
cm in diameter (finally something that is not in the 1
cm range)
q
Shape = raised, dome-shaped or rounded
q
Dermal or subcutaneous
q
Surface characteristic = smooth, ulcerated,
hyperkeratotic
J.
Telangiectasia
q
Permanently dilated blood vessels
q
Appearance = small dull red, linear, stellate or
punctuate
q
May
be seen by themselves or with other disorders
q
May
be skin and/or mucosa
K.
Purpura
q
Discoloration from bleeding into skin/mucosa
q
Pinpoint = petechiae
q
Large = ecchymosis
q
Non-palpable, except in allergic vasculitis
q
May
appear alone or as part of another disorder
L.
Burrow
q
Linear tunnel in stratum corneum
q
Shape = long, short, or serpiginous
q
Induced by a burrowing parasite
q
Ex.
Scabies
M.
Scales and Crusts
q
Crust = serum collections
q
Scale = increased stratum corneum cells
q
Texture of scales = silvery, fine, or tightly adherent
q
Appearance of scales = ostraceous (oyster-shell like) or
not
Back to the Integumentary System
Index
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