Derm Flashcards
venous stasis ulcers
distal lower leg, particularly the medial aspect of the ankle. Often surrounded by lipodermatosclerosis. May be tender or not. Shallow
arterial ulcers
better demarcated than venous ulcers, surrounding skin pale and hairless. Very tender.
pitted keratolysis
small indented pits on a background of hyperkeratosis
results from hyperhydrosis
superficial bacterial infection
Tx clinda or erythromycin lotion
SJS vs TEN
SJS: 30%
calciphylaxis
painful black eschar with slight surrounding angulated purpura in a patient on dialysis
additional testing for pityriasis rosea
syphilis
treatment of peristomal pyoderma gangrenosum
topical steroids
treatment of lichen sclerosis
high potency topical corticosteroids (even GU): clobetasol, mometasone, or betamethasone
fixed drug eruption
painful purple patch that recurs in the same location
commonly: lips, genitals, hands
Sweet syndrome
acute febrile neutropenic dermatosis
“juicy” red papules, plaques, or nodules with sharp borders, appearing on the upper trunk and proximal extremities in the setting of fevers
Tx: glucocorticoids
eosinophilic pustular folliculitis
intensely pruritic papules on the face and chest and is most commonly seen in patients with HIV infection, generally with a CD4 cell count less than 300/µL
treatment urticaria
second generation anti histamines
basal cell carcinoma
asymptomatic translucent telangiectatic papules on sun-exposed areas in fair-skinned patients
miliaria crystallina
= heat rash
porphyria cutanea tarda
presents with skin fragility and small, transient, easily ruptured vesicles in sun-exposed areas such as on the hands
may develop from extensive alcohol use, hemochromatosis, or hepatitis C virus infection
