dermatology Flashcards Preview

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Flashcards in dermatology Deck (75):
1

nickel sized oval plaques on legs/trunk/hand/feet but spares and scalp. lesions are pruritic and scaly, excoriated

nummular eczema

2

tx nummular eczema

avoid triggers/frequent bathing/emollients and topical steroids

3

flexor surfaces...xerosis..lesions/dry/thickened skin..IgE sensitization

eczema

4

eczema treatment

lukewarm baths, emollients, hydrocortisone/triamcinolone

5

dry/oily yellow scales with underlying erythema on scalp, eyelids, face, body folds. common in infants and elderly

seborrheic dermatitis

6

dry/oily yellow scales with underlying erythema on scalp, eyelids, face, body folds. common in infants and elderly

seborrheic dermatitis

7

tx seborrheic dermatitis

selenium sulfide shampoo for scalp. hydrocortisone cream for face or intertriginous areas. ketoconazole if needed

8

statis dermatitis can be caused by what anti HTN medication?

amlodipine

9

pathophys of statis dermatitis

venous insufficiency, increased hydrostatic pressure-->increased permeability of dermal capillaries-->fibrinogen leaks and forms around capillaries, hypoxia/cell damage, release of pro-inflammatory cytokines results in cutaneous inflammation and fibrosis

10

pathophys of statis dermatitis

venous insufficiency, increased hydrostatic pressure-->increased permeability of dermal capillaries-->fibrinogen leaks and forms around capillaries, hypoxia/cell damage, release of pro-inflammatory cytokines results in cutaneous inflammation and fibrosis

11

erythematous, scaling, eczematous patches on lower extremities. most common is medial ankle. weeping, reddish-brown discoloration

statis dermatitis

12

stocking erythroderma/inverted champagne bottle

stasis dermatitis

13

tx stasis dermatitis

compression stockings, topical triamcinalone for itching, elevate legs

14

small clear vesicles like a grain of tapioca in the skin. can be pruritic. can lead to scales/dry/fissures

dyshydrosis

15

tx dishydrosis

topical and systemic corticosteroids. second line is puva therapy or botox

16

second degree process...thickening and scaling of skin

lichen simplex chronicus

17

what is lichen simplex chronicus associated with?

emotionally stressed patients, anxiety, women 30-50, hair dye

18

tx lichen simplex chronicus

topical steroids, consider antibiotics...may need to refer to allergist or psych for stress/scratching

19

what is lichen planus associated with?

ulcerative colitis, vitiligo, alopecia areata, dermatomyositis, lichen sclerosis, myasthenia gravis (it is cell mediated)

20

tx lichen planus

topical steroids. second line is triamcinolone IM
if in oral or vaginal area, can use topical tacrolimus

21

characteristic white lines (wickham stria)

lichen planus

22

planar, polygonal, pruritic, purple, papules

lichen planus

23

extensor surfaces, silvery scales on bright red plaques

psoriasis

24

extensor surfaces, silvery scales on bright red plaques

psoriasis

25

tx psoriasis

phototherapy, topical corticosteroids, PUVA, vitamin D analogues

26

tx psoriasis on scalp

tar shampoo or salicyclic acid gel

27

tx sporiasis body folds

tacrolimus ointment or pimecrolimus cream

28

tx pityriasis rosea

topical antipruritics, oral antihistamines

29

bullous erpution with raised purpuric target-like lesion with 2 zones of color change.. central blister.

erythema multiforme

30

medications that commonly can induce EM/SJS

sulfonamides, allopurinol, NSAIDs, anticonvulsants

31

benign pruritic disease characterized by flisters in flexural areas

bullous pemphigoid

32

how to dx bullous pemphigoid

biopsy/direct immunofluorescence exam. IgG and C3 are found at dermal-epidermal junction

33

tx bullous pemphigoid

topical corticosteroids, prednisone 75mg/kg daily if intense

34

tx comedomal acne

topical retinoid (not in pregnancy). benzyoyl peroxide, topical antibiotics

35

papular or cystic inflammatory acne

topical antibiotics and benzoyl gel...tetracycline or coxy or mino...BCP....severe may need isotretinoin (accutane)

36

tx rosacea

avoid triggers. metronidazole cream. fulfur topicals. benzoyl peroxide/retinoids...systemic antibiotics

37

tx folliculitis

anhydrous ethyl alcohol with aluminum chloride, topical antibiotics...topical permethrin...PUVA

38

beige to brown/black velvety or water stuck on plaques

seborrheic keratosis

39

flesh colored, pink and hyperpigmented/sandpaper feeling...bleeds when scales scraped away

actinic keratosis

40

rings or erythema with advancing border, central clearing, scaling or fissuring of skin web spaces

tinea corporis/pedis

41

tx tinea

terbinafine (lamisil)

42

well marginated oval to round macules scattered with darker or lighter than the surrounding skin..fine scales over the lesions...mild pruritis...

tinea versicolor

43

wood's lamp appears coppery-orange

tinea versicolor

44

KOH shows short, cigar butt hyphae (spaghetti and meatballs)

tinea versicolor

45

tx tinea versicolor

selenium sulfide topical, ketoconazole/fluconazole

46

tx tinea versicolor

selenium sulfide topical, ketoconazole/fluconazole

47

muscle pain, spasm and rigidity from bite

black widow

48

local necrosis, swelling and redness

brow recluse

49

tx black widow

parenteral opioids/muscle relaxants

50

tx brown recluse

oral corticosteroids or excision of bite site

51

pearly papules, erosion or ulceration, central depression, surface telangectasis

BCC

52

atypical nevia

malignant melanoma

53

keratocathoma (central keratin plug and rapid growth) may turn in to what skin cancer?

SCC

54

what is bowen's disease?

SCC in situ

55

erythroplasia of Queyrat?

SCC in situ of uncircumcised men

56

smooth, hairless patches on scalp without scarring

alopecia areata

57

pattern baldness and tx

androgenic alopecia...minoxidil

58

onchomycosis tx

fingernails: grisovulvin
toenails: terbinafine

59

what is the name for HPV genital warts?

condyloma accuminatum

60

single/multiple dome-shaped waxy papules that are umbilicated. become soft, white/pearly and may suppurate

molluscum contagiosum

61

verrucae (wart) tx

liquid nitrogen ever 2-4 weeks, keratolytic agents like salicylic acid, podophyllum resin, imiquimod, laser therapy

62

slapped cheecks/lacy reticular rash

erythema infectiosum / fifths disease

63

causative organism of fifths disease

parvovirus B19

64

causative organism of fifths disease

parvovirus B19

65

causative organism of roseola

human herpes virus 6

66

bright red spot then spreads to forma a tense, sharply demarcated, glistening hot plaque. also have pain, chills, fever

erysipelas

67

tx erysipelas

bed rest with head of bed elevated. IV abx...PEN VK, dicloxacillin or cefazolin

68

dark coloration and velvety appearance and texture

acanthosis nigricans

69

recurrent tender abscesses in axillae, groin, buttocks and sometimes sinus tracts

hidradenitus suppurativa

70

hyperpigmentation of face usually due to estrogens

melasma

71

tx of melasma

avoid sunlight, hydroquinone cream, tretinoin cream, laser treatment

72

hypopigmentation or depigmentation

vitiligo

73

tx vitiligo

topical tacrolimus, PUVA thearpy

74

nodules or blotches that may be red, purple, brown, or black, and are usually papular (in other words, palpable or raised) may be accompanying lymphedema of the affected extremity. During the course of the disease (rarely initially), mucous membranes of mouth and gastrointestinal (GI) tract and regional lymph nodes may be affected. GI tract involvement is usually asymptomatic, but bleeding, diarrhea, protein-losing enteropathy, intussusception, and perforation have been reported

kaposi sarcoma

75

tx kaposi sarcoma

surgery, radiation, cryo