Pics Flashcards by Savannah Smith

What is this? Which is acute and which is chronic?

dermatitis

top: acute
bottom: chronic

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Patient had exposure to irritant.

eczematous, scaly edematous plaques with vesicles in areas of exposure

allergic contact dermatitis

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left: poison oak (3-7 cm, lobulated notched edges, groups of 3, 5 or 7, bush)
right: poison ivy (groups of 3s, hairy stem notched edges, 3-15 cm, vines or shrubs)

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Rhus allergy

lesions begin as erythematous macules that become papules or plaques, blisters from over one or two days

linear streaks

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Rhus allergy

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linear streaks, fomites can be contaminated by plant oil and lead to recurrent eruptions

Rhus dermatitis

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eyelid allergic contact dermatitis

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What allergen might this person be exposed to?

topical antibiotic cream

allergic contact dermatitis

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What allergen might this person be exposed to?

nickel allergic contact dermatitis from glasses

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What allergen might this person be exposed to?

allergic contact dermatitis from nickel from belt

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What allergen might this respiratory therapist be exposed to?

latex allergy

allergic contact dermatitis

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What are the possible allergen exposures in these pictures?

allergic contact dermatitis

upper left: neoprene in keyboard pad

lower left: paraphenylenediamene

upper right: shoe

lower right: bleached rubber

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allergic contact dermatits

top: bacitracin
low: neomycin in otic suspension

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allergic contact dermatitis

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allergic contact dermatitis

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irritant contact dermatitis

left: pepper spray
right: bleach

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atopic dermatitis

a: flexure erythema
b: flexural eczema
c: flexural lichenification
d: circumoral pallor
e: Dennie Morgan folds

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atopic dermatitis

excoriations and lichenification on flexor surfaces of elbow and wrist and on hand

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atopic dermatitis

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atopic dermatitis

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atopic dermatitis

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erosions, drainage with yellow crusting indicates infection

atopic dermatitis

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multiple wide spread monomorphic punched out discrete erosion with hemorrhagic crusting

eczema herpeticum

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coin shaped lesionof acute/subacute dermatitis that are fairly well demarcated

nummular dermatitis/ discoid eczema

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nummular dermatitis/ discoid eczema

dyshidrotic eczema/pompholyx

lichenified plaque Lichen Simplex Chronicus

urticaria

angioedema

physical urticaria

morbillifrom eruption from drug reaction

small, pink, itchy papules on pressure bearing areas, spread over time to become confluent, may be purpuric morbillifrom drug eruption

morbilliform drug rash

urticarial drug reaction

facial edema, seere morbilliform drug reaction DRESS: drug rash with eosinophilia and systemic systems

fixed drug eruption

dusky target lesion stevens-johnson syndrome or tumor epidermal necrolysis

stevens-johnson syndrome or tumor epidermal necrolysis

Stvens-Johnson syndrome or tumor epidermal necrolysis

conjunctivitis Steven-johnson syndrome or tumor epidermal necrolysis

stevens-johnson syndrome or toxic epidermal necrolysis

toxic epidermal necrolysis

toxic epidernal necrolysis

toxic epidermal necrolysis

bullous diabeticorum due to DM vessel insufficiency

coma blister

bullous impetigo

edema blister

bullous small vessel cutaneous vasculitis

bullous fixed drug reaction

exuberant bug bites in leukemia patient

blister from bed bug bite

cutaneous mastocytoma: mast cells rub they will degranulate

abnormal adhesion: genetic epidermolysis bullosa

bullous pemphigoid

clean split between intact epidermis and dermis bullous pemphigoid

eosinophils can form before the blister forms bullous pemphigoid

bullous pemphigoid (can be confused with drug rxn)

tense blister bullous pemphigoid

Push and don't rupture.

occurring different times bullous pemphigoid

different times bullous pemphigoid

bullous pemphigoid

healing bullous pemphigoid

mucous membrane pemphigoid

gestational pemphigoid

IgG and C3

bullous pemphigoid

IgG and C3

histo: row of tombstones, intraepidermal split within epidermis, acantholysis (individual cells lose attachment) IF: intercellular net-like between keratinocytes pemphis vulgaris

oral erosion pemphigus vulgaris

pemphigus vulgaris

dermatitis herpetiformis

IgA and C3

top: neutrophilic, eosinophilic infiltrate at dermal papillae, neutrophilic abscess bottom: IF: granular IgA and C3 in dermal papillae

petechiae

scurvy: need vit. C to maintain capillary petechiae

large ecchymosis

solar purpura

linear purpura due to blood pressure cuff thrombocytopenia and trauma

steroid induced atrophy, actinic damage, trauma (compression device) purpura

hypergammaglobulinemic purpura of Waldenstrom ecchymosis

Henoch-Schnonlein purpura

Henoch-Schonlein purpura

Henoch-Schonlein purpura inflammation of superficial vessels

small vessel vasculitis

leukocytoclastic vasculitis with myelodysplasia

meningococcemia (acute)

leukocytoclastic vasculitis

vasculitis affecting dependent areas in hospitalized patient

Churg-Strauss vasculitis

Henoch-Schonlein purpura

IgA: vessels

henoch-schonlein purpura

polyarteritis nodosa

inflammation of deep vessels polyarteritis nodosa

purpura fulminans in DIC

6am to 11am

purpura fulminans forming

purpura fulminans

plaque psoriasis extensor surface, erythemic with white scales

spares popliteal fossa psoriasis

silver white scaling psoriasis

tear drop, erythematous scaly guttate psoriasis

erythrodermic psoriasis

a,b: psoriasis c,d: pustular psoriasis e: penile psoriasis

f: guttate psoriasis g: generalized pustular psoriasis h: erythrodermic psoriasis

distal onchylysis psoriasis

nail pitting psoriasis

geographic tongue psoriasis

DIP PIP, sausage fingers psoariatic arthritis

Seborrheic dermatitis

pityriasis rosea

herald patch: outer scaling inner clearing pityriasis rosea

lichen planus a: wrist b: purple polygonal papules c: foot d: penis

lichen planus e. penis f. erosive oral lichen planus g: vulvar lichen planus

lichen planus

hypertrophic lichen planus

tiny, females lay 3 eggs/day most patients have less than 20 mites scabies mite

scabies

burrow: linear marking in skin due to movement of mite usually found in interdigital spaces, wrists, elbows scabies

burrow scabies

scabies

scrape from burrow scabies: mite, egg, feces

crusted scabies really high mite burden

louse

nits (oval egg capsules) FIRMLY fixed to hair shaft

erythema migrans: bulls eye lyme disease

edematous papules scattered over the body, some excoriated bed bugs

red-brown with segemented abdomen and vestigial wings Cimex lectularis bed bugs