Flashcards in DERM - Vascular diseases of the skin Deck (18)
definition: stasis dermatitis
erythematous, pruritic, scaling patches on lower extremities due to impaired VENOUS circulation (chronic changes in lower extremities include edema, skin hyperpigmentation and ulcer formation)
what is the appearance of vasculitis?
palpable purpuric papules
arterial ulcers are caused by ________
- punched out well demarcated edges and a pale base
- minimal exudation
what is the treatment for arterial ulcers?
- refer to vascular surgeon
- lifestyle mods
what is a normal ABI value range?
0.9 - 1.2
what are the options for starvation disorders?
what is a cutaneous marker of venous insufficiency?
when does venous stasis occur?
when valves in the deep or perforating veins become incompetent, causing reflux into the superficial system (venous HTN)
what are late signs of venous insufficiency?
- venous ulcers
- scars that appear porcelain white and atrophic
what is lipodermatosclerosis? it is associated with what condition?
- subcutaneous fat is replaced by fibrosis that eventually impedes venous and lymphatic flow leading to edema above the fibrosis
"inverted champagne bottle legs" is due to:
does purpura blanch when pressed?
what is the etiologic agent of infectious purpura?
palpable purpura results from inflammation of _____________
small cutaneous vessels
palpable purpura is the hallmark lesion of ___________
leukocytoclastic vasculitis (small vessel vasculitis)
- fever for 5 or more days
- strawberry tongue, cracked lips
- extremity edema, desquamation
- cervical nodes (need fever)