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45 Cards in this Set

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Macule
*Primary lesion
"flat discoloration in skin" non-palpable cirumscribed area usu. demarcated by change in color. Ex:Cafe-au lait spot in neurofibromatosis
Papule, nodule, tumor
*primary
"Bumps" elevated palpale lesion of varying size (papule =5mm, nodule=5mm-5cm, tumor 5cm) Ex: papule-lichen planus, nodule-compund nerves, tumor-squamous cell carcinoma
Plaque
*primary
"raised w/ flat top" papule larger in area than in thickness, over 2 cm in diameter, relatively flat Ex: psoriasis
Vesicle, bulla (blister)
*primary
fluid containing lesion usualy elevated Ex:vesicle-herpes simplex, Bulla-bullous pemphigoid
Pustule
*primary
elevated lesion containing pus Ex:acne vulgaris
Cyst
*primary
tumor containing liquid or semi-solid material Ex:epidermal cyst
Wheal
*prmiary
transitory, palpable lesion due to edema in upper dermis Ex:hives
Burrow
*primary
linear train produced by parasites Ex:Scabies (mite)
Scale
*secondary
"flaky stratum corneum"
excessive accumulation of loosel adherent keratin Ex:psoriasis (thick scaled). pityriasis rosea (fine scale and attached at periphery and loose in center)
Crust
*secondary
accumulation of serum and cellular, baterial and squamous debris over damaged epidermis Ex:impetigo
Fissure
*secondary
crack in epidermis extending into papillary dermis Ex: hand eczema
Lichenification
*secondary
"looks like lichen growing on rock" areas of accentuated skin markins associated w/ thickening of epidermis usually caused by scratching or rubbing Ex: neurodermatitis
Erosion
*secondary
"superficial"
loss of epidermis, heals w/out scaring Ex: impetigo
Ulcer
*secondary
"Deep"
loss of epitermis and part or all of dermis heals w/ scarring Ex:decubitus ulcer
Excoriation
*secondary
"scratch injury"
linear erosions, self inducted implied but cause unknown Ex: scabies
Scar
*secondary
fibrous tissue replacing normal architecture of dermis
Atrophy
*secondary
Epidermal-thinning of epidermis Ex:doscoid lupus erythematous
Dermal-decrease in amt of collagen or mucosubstances causing depression of skin Ex:atrophy following steroids
Verrucous, gegtating
Wart-like Ex: cerruca culgaris
Pedunculated
on stalk
Sessile
not on stalk
Pigmentation
discoloration of skin due to melanin, foreign substances or hemorrhage
Telangiectasia
dilation of superficial vessels
Eczematoid
inflammatory lesions w/ scale, vesiculation, crust and weeping Ex: poison ivy dermatitis
Circinate
*round lesions
circular lesions Ex: herald patch of pityriasis rosea
Annular
*round lesions
ring-shaped lesion w/ active margin and clear center Ex:ringworm
Discoid
*round lesions
disk shaped Ex:lupus erythematous
Nummular
*round lesions
coin shaped Ex:nummular eczema
Guttate
Drop sized Ex: guttate psoriasis
Iris lesion;target
tow or three circles form true iris Ex: erythema multiforme
Herpetiform
grouped (vesicles, papules or excoriations) Ex: herpes simplex
Reticualted
net-like distribution Ex: livedo reticularis
Morbilliform
small, confluent macules, forming irregular shapes
Confluent
blending into adjacent lesions
Straight
Ex: excoriations
Arcuate
arc shaped Ex: hives
Serpiginous
snake shaped Ex: hives
Zosteriform
linear dermatome distribution Ex:shingles
Symmetry
Ex:pityriasis rosea (PRP)
Photo-distribution
Ex: phototoxic reaction to tetracyclines
Mucous membrane involvement
Ex: lichen planus
Contact areas
Ex: shoe dermatitis, nickel dermatitis
Extensor surfaces
Ex: psoriasis
Flexural surface
Ex: atopic dermatitis
Koebner's isomorphic phenomenon
lesions fomring in areas of previous trauma to skin Ex: psoriasis, lichen planus, warts
Five basic morphologic groups for classification
Papulo squamous
Vesicular and bullous Vascular rxn
Dermatitis-eczema
Tumor nodule