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DERM EXAM 2 > papulosquamous lim > Flashcards

papulosquamous lim Flashcards

1
Q

What is the eponym for PLEVA?

A

Mucha-Habermann disease

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1
Q

What is the SYSTEMIC treatment for crusted scabies?

A

ivermectin

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2
Q

What has a classic moccasin distribution?

A

tinea pedis

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3
Q

What regions of the body is Malassezia furfur most common?

A

Areas of sebaceous glands, it requires oil to grow (sebum)

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4
Q

Tx for mycosis fungoides

A

PUVA, topical nitrogen mustard, TARGRETIN, electron beam therapy

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5
Q

What fungus is a causal factor in seborrheic dermatitis

A

Malassezia ovalis

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5
Q

What is Majaki’s granuloma?

A

fungus driven deep into hair follicle

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6
Q

T/F: you can cure seborrheic dermatitis

A

false it is a chronic condition so really can only be managed

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6
Q

To what virus is Pityriasis rosea associated?

A

HHV-6 so this shouldn?t be too hard to remember since it is roseola

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7
Q

How do you confirm syphilitic infection?

A

FTA-ABS test (fluorescent treponemal antibody absorption test)

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8
Q

What is the itch that rashes?

A

atopic dermatitis

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9
Q

Tx for pityriasis rubrum pilaris

A

accutane

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10
Q

What is oriented along skin lines in a classic christmas tree pattern?

A

Pityriasis rosea

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10
Q

Lacy white lesions in mouth with weird looking papules on skin makes you think ___________

A

WTF??? But you’re supposed to think of lichen planus

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10
Q

What is the Tx of PLEVA?

A

chronic antibiotics (erythromycin and doxy) works for some reason

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11
Q

What are 4 drugs that can precipitate or exacerbate psoriasis?

A

lithium, beta blockers, antimalarials, systemic steroids

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11
Q

T/F: tinea infections infect live tissue

A

false the live in stratum corneum, which is dead

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12
Q

What do you think of with “islands of normalcy”

A

pityriasis rubrum pilaris

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13
Q

The “Herald Patch” is associated with what?

A

Pityriasis rosea

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15
Q

What virus is lichen planus often associated with?

A

Hepatitis C

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16
Q

Acral pustular psoriasis lends itself well to Tx with ____________

A

retinoids

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17
Q

Wickham’s Striae and the Koebner phenomenon often occur in ____________

A

Lichen planus (Koebner also in psoriasis et al but wickham striae are lichen planus)

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18
Q

What should you keep in mind when eczematous lesions fail to clear?

A

Possibility of Cutaneous T cell lymphoma (Mycosis fungoides)

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18
Q

What is “Liner’s Disease”?

A

serious seborrheic dermatitis in babies

20
Q

3 genera of dermatophytes

A

Microsporum, trichophyton, and epidermophyton

21
Q

What are 3 diseases that seborrheic dermatitis is associated with?

A

AIDS, Parkinson’s, and Down’s

22
Q

What diseases often have false positives on screening tests (VDRL andRPR) for syphilis

A

collagen vascular diseases (first aid says SLE has false pos because interacts with cardiolipin in the test)

24
Q

T/F: topical meds are good enough to treat guttate psoriasis

A

FALSE

25
Q

What should you think of when a papulosqumaous rash does not respond to TX?

A

Cutaneous T cell lymphoma

26
Q

what STD might you need to differentiate pitryiasis rosea from?

A

secondary syphilis

27
Q

Who is most likely to have issues with post-inflammatory hyperpigmentation?

A

darker skinned individuals

28
Q

What has a characteristic collarette scale?

A

Pityriasis rosea

28
Q

T/F: ANA is positive in most cases of subacute cutaneous lupus

A

false ANA is often negative

29
Q

If M. furfur is normal flora then why doesn?t everyone have pityriasis versicolor?

A

Because “certain endogenous and exogenous” factors cause it to go from normal yeast form to mycelial form

31
Q

What are papulosquamous diseases?

A

Diseases characterized by scaly papules and plaques

31
Q

If there is residual hypopigmentation after Tx of M. furfur, then how do you know your Tx worked?

A

You can use Wood’s lamp, the lack of fluorescence will tell you there is no fungus present

32
Q

What co-morbidities are associated with psoriasis

A

arthritis, heart disease, diabetes, cancer, and HTN

33
Q

What does PLEVA stand for?

A

Pityriasis Lichenoides et Varioliformis Acuta

34
Q

What is dandruff?

A

seborrheic dermatitis

36
Q

Tx of syphilis

A

penicillin G

37
Q

What is the paradigm shift in tx of atopic dermatitis

A

less steroids and more normalizing barrier function

39
Q

Why is there hypopigmentation in M. furfur infections? Given that can you confidently say that it is localized to the stratum corneum?

A

There is melanocyte damage; no because melanocytes are located in stratum basale

40
Q

Another name for Norwegian scabies

A

Crusted scabies

42
Q

What other infectious lesion might secondary syphilis closely resemble?

A

Pityriasis rosea

44
Q

Age distribution for Pityriasis rubra pilaris

A

bimodal young and old

45
Q

“I scratched myself and it started to look weird”

A

probs the koebner phenomenon or dermatographism

46
Q

What kind of drugs especially seem to induce subacute cutaneous lupus?

A

HCTZ and CCBs

47
Q

What does nummular eczema look like?

A

coin-like

48
Q

What is the term for a swollen achilles tendon?

A

enthesitis

49
Q

What is the greasy and waxy rash?

A

seborrheic dermatitis

50
Q

T/F: tinea involves the scrotum and penis

A

FALSE

52
Q

What labs are usually negative with psoriasis?

A

Rheumatoid arthritis labs essentially: RF neg and anti-citrullinated peptide negative

53
Q

What diseases is seborrheic dermatitis assoc with?

A

Down’s, MR, and Parkinson’s as well as IC pts

54
Q

What is cradle cap in infants?

A

seborrheic dermatitis

55
Q

What kind of drugs are used for psoriasis?

A

Methotrexate, cyclosporine, TNF-blocking biologics

56
Q

What kind of changes to the nail may occur with psoriasis?

A

onycholysis, subungual debris, pitting, oil spot lesion, and nail deformity

57
Q

T/F: it is safe to touch secondary syphilis rashes

A

false they are infectious

58
Q

These lesions have “clean cut ham” color

A

secondary syphilis

DERM EXAM 2 (7 decks)

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