Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
Describe (not diagnosis)
|
Annular erythematous macules with trailing ring of scales
|
|
|
Erythema histology
note: stretched vessels (not ruptured or leaking) |
|
|
Prototypical urticaria (hives if <24 hrs)
note: orange peel appearance indicates fluid accumulation in dermis |
|
|
Urticaria
note: presence of eosinophils - hazy around vessels with lots of infiltrate - lots of dermal edema (slightly more damage than with erythema) |
|
|
Urticaria
note: orange peel pattern on erythematous areas |
|
|
Angioedema (urticaria on chest)
note: severe swelling indicates mast cells have dumped their granules |
|
also, most common areas
|
Erythema multiform
note: targetoid appearance of vesicles favors palms, soles, extensor surfaces |
|
|
Erythema multiform
note: targetoid appearance of purpura, non-blancing favors palms, soles, extensor surfaces |
|
|
Erythema multiform with swelling
note: targetoid appearance of vesicles favors palms, soles, extensor surfaces |
|
|
Erythema multiform
note: targetoid appearance of vesicles favors palms, soles, extensor surfaces |
|
|
Erythema multiform
note: targetoid appearance of vesicles favors palms, soles, extensor surfaces |
|
|
Erythema multiform or stevens johnson (if mucous membranes are involved)
|
|
|
Stevens-Johnson syndrome
note: mucosal involvement not in EM |
|
|
Stevens-Johnson syndrome
note: mucosal involvement not in EM |
|
|
Stevens-Johnson syndrome
note: severe blistering (bullae and vesicles) |
|
|
Toxic epidermal nicrolysis - when EM/SJS involves more than 30% of the body
|
|
also, where is the inflammation
|
Erythema nodulosum
note: "kicked in the shins" appearance (raised, erythematous, painful nodules) usually on the anterior surface of the lower leg Nodular swelling indicates subcutaneous involvement (inflammation of the subQ fat) |
|
|
Solar purpura
|
|
|
Solar purpura with damage to collagen and elastic fibers
|
|
|
Scarring from discoid lupus
|
|
|
discoid lupus characteristic butterfly rash = maculopapular eruptions over malar eminences and bridge of nose
|
|
|
Purpura - non-inflammatory type
|
|
|
Palpable purpura is hallmark of inflammatory (leaky) purpura
|
|
|
large, palpable spot of purpura = immune complex has "blown away" vessels
|
|
|
Inflammatory Purpura
note: fibrinoid necrosis, karyorhexis (when nucleus of neutrophils explode) |
|
|
inflammatory purpura
|
|
|
Inflammatory purpura of large vessel
|
|
|
Deep artery purpura in polyarteritis nodosa
|
