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Med Ed Medicine/FM > Dermatology > Flashcards

Dermatology Flashcards

1
Q

pemphigus vulgaris is Abs against what?

A

desmosomes

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2
Q

which of bullous pemphigoid or pemphigus valugaris occurs in mouth?

A

pemphigus

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3
Q

which of bullous pemphigoid or pemphigus valugaris has positive nikolsky sign?

A

pemphigus

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4
Q

what are abs against in bullous pemphigus?

A

hemidesmosomes

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5
Q

what is rx of pemphigus vulgaris and bullous pemphigoid/

A

high dose steroids

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6
Q

what is cause and appearance of dermatitis herpetiformis

A

celiac IgA deposits and causes blisters

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7
Q

what is rx of dermatitis herpetiformis?

A

avoid gluten and dapsone if bad

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8
Q

what is cause of porphyria cutanea tarda?

A

uroporphyrinogen

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9
Q

how do you diagnose porphyria cutanea tarda?

A

wood lamp

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10
Q

what are sx of porphyria cutanea tarda?

A

blisters in sun exposed areas

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11
Q

what is rx of porphyria cutanea tarda?

A

avoid sun

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12
Q

what are disease associations with porphyria cutanea tarda?

A

hep C, hemachromatosis, and OCPs

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13
Q

what is rx of seborrheic dermatitis?

A

selenium shampoo

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14
Q

first line rx for psoriasis? 2nd?

A

UV light exposure…then roids

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15
Q

where does pityriasis rosea spare?

A

palms and soles

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16
Q

what is description of pityriasis rosea?

A

has salmon colored herald patch that then scales

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17
Q

what is rx of pityriasis rosea?

A

nothing

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18
Q

what is cause of stasis dermatitis?

A

edema in legs

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19
Q

what does stasis dermatitis look like?

A

edema leads to erythematous dark itchy skin

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20
Q

what is rx for stasis dermatitis>

A

offload fluid

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21
Q

if urticaria does hot have anaphylaxis associated, then what is rx?

A

antihistamines or steroids

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22
Q

if urticaria does have anaphylaxis associated, then what is rx?

A

epi

23
Q

what does classic drug rxn rash look like

A

pink morbilloform symmetric rash that is widespread

24
Q

when does drug rxn rash appear?

A

7-14 days after start of meds

25
Q

what are two common causes of erythema multiforma?

A

HSV and drugs

26
Q

what does erythema multiforme look like?

A

targetoid lesions

27
Q

rx for erythema multiforme?

A

topical roids

28
Q

what are main differences in SJS and TEN?

A

SJS <10% and top layer of skin, TEN 30% or more and whole layer of skin

29
Q

what sign is positive in SJS/TEN?

A

nikolsky

30
Q

what do you have to check for in SJS/TEN?

A

oral and eye involvement

31
Q

what is rx of SJS/TEN?

A

stop meds and put in burn unit

32
Q

what are classic drugs that cause SJS/TEN?

A

penicillins, sulfa drugs, anti seizure meds and retroviral

33
Q

which of seborrheic keratosis or actinic keratosis is pre malignant?

A

actinic

34
Q

what is the appearance of seborrheic keratosis>

A

stuck on large greasy plaque

35
Q

what is appearance of actinic keratosis>

A

erythematous lesion with sandpaper like scale

36
Q

what is appearance of SCC?

A

fleshy colored lesion with ulceration

37
Q

SCC is malignancy of what cells?

A

keratinocytes

38
Q

can SCC metastasize?

A

yes

39
Q

cause of albinism

A

low tyrosinase activity

40
Q

cause of vitiligo

A

AI destruction of melanocytes

41
Q

cause of tinea versicolor?

A

infection with fungus

42
Q

rx of tinea versicolor?

A

selenium or ketoconazole

43
Q

rx of vitiligo?

A

topical steroids or UV light

44
Q

two treatments for male pattern baldness

A

minoxidil and finasteride

45
Q

what is pattern of male baldness

A

starts as patch at crown and extends outward

46
Q

what is cause of alopecia areata?

A

it is autoimmune

47
Q

what is rx for alopecia areata? where does it occur?

A

steroids. patch of hair loss anywhere on head

48
Q

what is rx of tinea capitis?

A

oral griseofulvin

49
Q

four steps of acne treatment in orderfrom weak to strong

A

topical retinoin
benzoyl peroxide
doxycycline
isotretinoin

50
Q

erysipelas is caused by what? who gets it?

A

strep in adults

51
Q

what does erysipelas look like/

A

well defined indurated red lesions

52
Q

rx of impetigo? erysipelas?

A

amoxicillin for both

53
Q

if cant give amoxicillin for impetigo, what can you give?

A

clindamycin

54
Q

what is rx of onychomychosis?

A

oral terbinafine

Med Ed Medicine/FM (2 decks)

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