differentiate rosacea from 1. acne vulgaris 2. facial seborrhea

1. lack of blackheads 2. presence of telangiectases

Derm Buzzwords/general Flashcards by Caroline Bouillon

erythematous papules, pustules, and cysts

acne vulgaris

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atrophic scars on forehead

acne vulgaris

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open comedones

blackheads aka incomplete blockage

*acne vulgairs

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closed comedones

whiteheads—complete blockage

*acne vulgaris

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comedones + small amounts of papules +/- pustules

mild acne vulgaris

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comedones, larger amounts of papules +/- pustules

moderate acne vulgaris

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nodular (>5mm) or cystic papules/pustules

severe acne vulgaris cystic

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MC on the face of women 30-50 YO

rosacea

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triggers for rosacea

ETOH 
hot/cold weather 
hot drinks 
spicy foods 
sun exposure

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acne-like rash–>+ papulopustules AND centrofacial erythema

No open comedones (blackheads)

rosacea

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facial flushing

rosacea

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telangiectasis

rosacea

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skin coarsening with burning and stining

rosacea

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Rhinophyma

rosacea

**cutaenous edema

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differentiate rosacea from

acne vulgaris
facial seborrhea

lack of blackheads

2. presence of telangiectases

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telangiectasia, flushing, papules, and pustules

rosacea

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pimples in armpit that are itchy and painful

folliculitis

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MC etiology for folliculitis

staph aureus

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Small, white-headed pimples appear around the hair follicles. They may itch or burn

folliculitis

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MCC of hot tub folliculitis

pseudomonas aeruginosa

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type IV hypersensitivity rxn of skin

erythema multiforme

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RF for erythema multiforme (3)

**MC? MC in kids?

VIRAL PRODROME:
MC= HSV adults
MC kids= Mycoplasma spp
*can also be strep pneumoniae

MEDICATIONS

sulfa drugs
beta-lactams
phenytoin
phenobarb

DZ PROCESSES

CA
autoimmune
idiopathic

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target lesions

erythema multiforme

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target lesions with a dusky, central area or blister

Study These Flashcards

erythema multiforme

dark red inflammatory zone surrounded by a pale ring of edema and an erythematous halo on extreme periphery of lesion

erythema multiforme

NEGATIVE nikolsky sign

**no epidermal detachement* erythema multiforme

detachement of the epidermis and extensive necrosis

SJS and TEN

sloughing of skin involivng <10% of body surface

SJS

sloughing of skin involivng <30% of body surface

TEN

RF for SJS and TEN (2) | MC?

MEDICATIONS 1. ****MC=sulfa drugs and anticonvulsants--Lamotrigine 2. *****Allopurinol---treats gout 3. NSAIDs 4. antipsychotics 5. abx INFECTIONS (less common) 1. mycoplasma pneumo 2. HIV 3. HSV OTHERS * malignancy * idiopathic

widespread flaccid bullae

SJS or TEN

where do the bullae for SJS and TEN start

trunk + face

erythematous macules with puripuric centers

SJS or TEN

POSITIVE nikolsky signn

1. SJS or TEN

true or false: | SJS or TEN can cause occular and pulmonary involvement

TRUE * can spread to cornea--- corneal ulceration or uveitis * can spread to bronchus--- bronchitis or pneumonia

what is alopecia Areata commonly associated with

other autoimmune disorders--thyroid, addisons dz, SLE

smooth, discrete circular patches of complete hair loss that develop over a PD of WEEKS - pain - pruritis

alopecia Areata

exclamation point hairs

alopecia Areata **short hair that broken off a few mm from scalp with tapering near the proximal shaft ! ! ! ! ! ! ! ! ! !

can hair regrow with alopecia Areata?

sometimes--- it will appear as fine thin white hair

what other derm finding is common with alopecia Areata

nail pitting nail fissuring tachyonychia

nail pitting or fissuring

1. alopecia Areata

definitive diagnosis for alopecia Areata

punch biopsy

punch biopsy shows: peribulbar lymphocytic inflammatory infiltrates surrounding the follciles

alopecia Areata

MC type of hair loss in men and women

androgenetic alopecia

key androgen in androgenetic alopecia

Dihydrotestosterone (DHT)

nonscarring hair loss

both types of alopecia

in males, where does hair loss start with androgenetic alopecia -women?

bitemporal thinning of frontal scalp---->mvoes to vertex=MEN women=thinning of hair b/w frontal and vertex of scalp w/o affecting the frontal hairline

MC cause of onychomycosis

dermatophyte-- esp T. rubrum (50%)

RF for onychomycosis (5)

1. increasing age 2. tinea pedia 3. psoriasis 4. occlusive shoes 5. immunodeficient

opaque nail that is thickened discolored and/or cracked

onychomycosis

where does onychomycosis MC occur

on big toe

what is essential to do prior to tx of onychomycosis?

confirmtion or RO fungal infection as cause | --->KOH

most sensitive test for onychomycosis

periodic acid-schiff test

nail infection caused by fungi

onychomycosis

nail infection involving lateral and proximal nail folds

paronychia

MCC of paronychia | -other etiologies

Staph aureus OTHERS: * GAS * oral flora if nail biters * candida sp= chronic

RF for paronychia

1. nail biter 2. dishwasher 3. cuticle damage---- manicure 4. ingrown nails **anything that can cause penetrating skin trauma***

painful red swollen around proximal or lateral nail folds at cuticle

paronychia

Derm Buzzwords/general Flashcards

(58 cards)