EXAM 2 - skin, MS Flashcards
(87 cards)
Macule
< 1 cm flat non-palpable cirucumscribed discolored
Patch
>1 cm diameter flat non-palpable irregular shape discolored
Lichenification
thickened epidermis with accentuated skin lines cause by rubbing
ex: Lichen simplex chronicus
Scar
thin or thick fibrous tissue, following dermal injury
ex: burns, acne, keloid, herpes zoster, hidradenitis
Fissure
linear break in skin through epidermis and dermis
ex: hand dermatitis, intertrigo
ulcer
loss of epidermis and dermis, size varies
ex: decubitus or stasis ulcer, factitial ulcer, pyoderma gangrenosum
Petechia
< 1 cm circumscribed deposit of blood
ex: meningococcemia, Gonococcemia
From: strangulation; bleeding, liver disease
Annular
circular or ring shape
linear
line formation
arciform
arch-sharped
–drug reaction
Grouped
occurring closely together
*Herpes zoster
Gyrate
convoluted, serpiginous shape
*creeping eruption
Gentamyocin reaction; what is typically done to tx?
25mg iv benadryl
Seborrhea
Erythematous plaques with dry or oily scales
Location: head and trunk at sites of sebaceous gland, rich skin
Psoriasis
chronic, WELL DEMARCATED erythematous plaques w/silleve scale
Rosacea
papules; pustules; no comedones
Face
Seborrheic dermatitis
greasy adherent scale on coalescing macules, papules, and patches
scalp brow paranasal, postauricular, and flexural areas
Pityriasis rosacea
single 3-4cm oval plaque at onset that is followed by numerous smaller (<1cm) plaques w/collarette scale
-following natural skin lines of trunk
Lichen planus
Pruritic, polyangular, planar, purple papules; lacy surface
*Face
Impetigo
Thin, erythematous bullous vesicles or pustules that heal with HONEY-colored crust
*face, neck, extremities
herpes simplex
Expanding erosions with pain; an active vesicular border and scalloped periphery
**orolabial, genital
herpes zoster
sequential pain; crops of erythematoous papules and plaques followed by erosive blisters
*dermatomal distribution of thoracic, cranial, trigeminal, lumbar and sacral nerves
allergic contact dermatitis
vesicles, edema, redness and extreme pruritus
*exposure site; often hands, forearms, face and tops of feet
corn
occurring over a bony prominence
-feet