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Derm Terms (Dermatology terms)

<p>List of descriptive dermatology words and their meanings.<br /></p>

List of descriptive dermatology words and their meanings.

Also see the Derm Dictionary

Primary skin lesions
abscess
localized necrotic tissue surrounded by normal tissue
boil
infected abscess; infected furuncle
bulla
elevated defined vesicle >1 cm2 containing serous (clear or straw-colored) fluid or blood
carbuncle
multiple, coalescing furuncles
furuncle
a tense pustule > 1 cm2
macule
flat (non-palpable) skin color change < 1 cm2
mass
a large neoplasm; implies benignity (see tumor)
neoplasm
a new growth
nodule
elevated solid contour change > 1 cm(extends into dermis)
papule
elevated (palpable) solid contour change < 1 cm2
patch
flat, non-palpable skin color change > 1 cm2
plaque
solid skin contour change > 1 cm2
pustule
purulent (pus-filled) papule
tumor
a large neoplasm (> 2-3 cm); implies malignancy (see mass)
ulcer (ulceration)
depressed exudative plaque into or through the dermis
vesicle
elevated fluid-filled papule < 1 cm2 containing serous (clear or straw-colored) fluid
wheal
an edematous raised, transient, irregularly-shaped papule or plaque
 
Secondary skin findings
crust
dried exudate (serum, sebum, blood, or pus) on skin surface
cyst
closed cavity lined by epithelium
dell
small depression of skin (typically circular)
depression
dell, indentation
ecchymosis(es)
large area of discoloration due to bleeding into skin or mucous membrane
erosion
loss of epidermis: demarcated, moist, indented patch
excoriation
linear abrasion of epidermis from scratching; leaves characteristic linear crusted plaques
escharnecrotic tissue that sloughs; most often associated with burn injury
exudate
a breach of skin leading to loss of fluid, blood cells, & cellular debris.  Results from inflammation.
fissure
linear splitting of skin into the dermis
hardening
thickened skin with hypo- or hyperpigmentation from prolonged irritant exposure
infarct
necrosis resulting from occlusion of blood vessels
iris
annular bulls-eye lesion
lichenification
epidermal thickening on an elevated plaque with accentuated skin markings, usually from chronic rubbing or scratching
livedo
vascular-based (erythematous to blue) lace-like pattern
maculopapularconsisting of both macules and papules:  may be used to describe an eruption, but not a lesion (no lesion is both macular and papular). 
maculosquamous
infrequently used term; macule with fine superficial scale; not thick enough to be a papule
necrosis, necrotic
cellular death leading to erosion, ulceration, or eschar
papulosquamous
papules with fine superficial scale
petechiae
pinpoint purpura (discoloration from bleeding into the skin or mucous membrane)
plaque
raised flat lesion > 1 cm in size often formed from a confluence of papules
poikiloderma
combination of atrophy, pigmentary change & telangiectasia
purpura
discoloration from bleeding into skin or mucous membrane
purulent
pus-filled (white blood cells due to infection or inflammation)
scale
sloughed epidermal cells in sheets; silver, tan, white, or yellow

cuticular
(thin, relatively large flakes)
exfoliative (large, peeling sheets)
follicular (keratotic plugs, spines, filament, or lichenoid scales)
granular (like small grains)
hystrix-like (quill-like)
ichthyosiform (fish scale-like)
keratotic (horny masses)
lamellar (thin, relatively large flakes)
membranous (large, peeling sheets)
pityriasiform (bran-like)
psoriasiform (brittle plates in loose layers)
scar
fibrous tissue replacement of skin at site of dermal injury or ulcer
sclerosis
induration, hardened skin from inflammation & increased connective tissue formation
sinus
communicating tract through the skin, frequently draining
stellate
star-like
sugillation
swollen bruises from injury
vegetation
multiple closely spaced projections in a papule or plaque
 
Configuration
acuminate
pointed
annular
ring-shaped
arciform
arc-shaped
asymmetrical
unilateral or uneven
atrophy
loss of the epidermis leading to thin, transparent skin, or loss of dermis leading to depression of skin
confluent
merging together
corymbiform
grouped with central large lesion & surrounding smaller lesions
diffuse
widely distributed
discoid
coin-like (same as nummular)
discrete
separate from other lesions
ecchymosis
bruise; collection of extravascular blood in dermis or subcutaneous tissue caused by trauma
generalized
distributed diffusely
group(ed)
cluster(s) of lesions
guttate
drop-like
gyrate
ring or spiral shape
hematoma
large bruise; localized collection of blood beneath the subcutaneous tissue; usually from blunt trauma
herpetiform
pattern of clusters of vesicles
iris lesion
concentric rings; bulls-eye
keloid
benign overgrowth of connective tissue following skin injury
linear
in a line
localized
limited area of involvement
nummular
coin-like (same as discoid)
petechiae
discrete bruises; violaceous hemorrhagic pinpoint macules
poikilodermatous
poorly marginated patches with telangiectasia & hyper- and hypopigmented areas
polymorphous
occurring in several different configurations
punctate
pointed or dotted
purpura
bruise; irregular, large macule with varied color; dark purple to red, green, or brownish-yellow
reticular
lacy, network pattern
satellite
single lesion in close proximity to large group
serpiginous
snake-like
solitary
single
striae
depressed bands of thin, hypopigmented, stretched, shiny skin
symmetrical
even, bilateral involvement
telangiectasia
permanent dilatation of capillaries in the skin; form fine, branching red lines
zosteriform
band-like pattern in a dermatomal distribution

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