Derm Manifestations Flashcards
which metabolic diseases may have derm findings?
diabetes mellitus gout thyroid disease hyperlipidemia vitamin disorders
diabetic bullosis is seen in what patient population?
long-standing diabetics ages 40-75
where is granuloma annulare found in the body?
- backs of hands and fingers
- dorsal and lateral aspect of feet, ankles, and legs
- if disseminated form, may be found body wide
what is this: firm, non-tender yellow papules arising on an erythematous base typically on the knees, elbows, back, buttocks, trunk and heel?
xanthoma eruptivum
xanthoma eruptivum is associated with what diseases?
hyperlipidemia, hyperglycemia and glycosuria
what percentage of diabetics will have some skin complication?
30%
where on the body does necrobiosis lipoidica diabeticorum affect?
anterior shin
dorsum of foot
what is this: well-circumscribed, oval red plaques with an advancing red border and yellow brown central area.
necrobiosis lipoidica diabeticorum
how do you treat necrobiosis lipoidica diabeticorum?
usually none, bc asymptomatic
- local wound care if ulcerations present
- topical corticosteroids
what is this: small, round to oval flat scaly papulers located on anterior shins?
diabetic dermopathy
describe the two types of diabetic bullosis.
- non-scarring: is non-hemorrhagic and heals spontaneously
2. scarring: hemorrhagic and has inflamamtory base
how do you treat diabetic bullosis?
leave bulla intact
if tense, may aspirate
what is this: petechiae that cause orange or brown pigmentation?
pigmented purpura
which disease is histologically similar to necrobiosis lipoidcia and rheumatoid nodules?
granuloma annulare
treatment for gangrene?
revascularization if possible
(do not surgically debride unless revascularized or acutely infected)
-local wound care to keep gangrene dry and stable
describe acute gouty derm changes.
erythema, increased soft tissue temp; localized edema, intense pain with hypersensitivity
describe chronic gouty derm changes.
tophi may form around joints
- skin becomes thin, discolored and ulcerated
- cellulitis and infection can occur
describe the skin in hypothyroidism.
cold, dry skin
describe derm manifestations of warm skin.
(warm, moist skin)
- peripheral vasodilation
- moist skin
- pink and red skin
describe pretibial myxedema.
well-circumscribed fleshy nodules found bilateraly on anterior lower legs
(produced by large deposits of acid mucopolysaccharides)
what is xanthomatoisis?
group of disorders characterized by lipid deposition in the skin
caused by hyperlipidemia
scurvy is due to what?
lack of vitamin C
what derm changes are sseen with scruvy?
petechial hemorrhages
small ecchymosis early
follicular hyperkeratosis on LE
