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Step 2 CK > Dermatology > Flashcards

Dermatology Flashcards

1
Q

Treatment for tender and swollen area on right buttock with central fluctuance and surrounding erythema?

A

I&D

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2
Q

Treatment for dry gangrene?

A

revascularization and amputation

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3
Q

Treatment for wet gangrene?

A

debridement, hyperbaric O2, amputation

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4
Q

42 year old complains of occasional nodules that progress to abscesses in her axilla. Dx and tx?

A

hidradenitis suppurativa

topical clinda

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5
Q

Treatment for gas gangrene?

A

debridement, amputation, abx

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6
Q

7 year old boy is brought to the country clinic with a rash. The mother denies that the child has acted ill. The exam is unremarkable besides perioral honeycrusted lesions and regional LAD. What bacteria is the likely cause? What is the most appropriate tx?

A

s aureus

mupirocin

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7
Q

15 year old girl is brought to the dermatologist for treatment of her acne. What is the causative organism in acne?

A

propionibacterium acne

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8
Q

What medication options are available for treatment of acne vulgaris?

A

retinoic acid, spironolactone, OCP, erythro, clinda, benzoyl peroxide

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9
Q

What side effects can arise from the use of oral isotretinoin?

A

skin drying, teratogenic, photosensitivity, hepatotoxicity, incr triglycerides, depression/SI

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10
Q

Treatment for rosacea?

A

topical: metronidazole, azelaic acid

laser therapy

tetra, doxy, mino, isotretinoin

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11
Q

25 year old man is the office for cold sores. On exam, he has a collection of 3 small vesicles at the vermillion border. He says that they are painful. This is the second time he has had these. What studies might be helpful to diagnose this disease?

A

Tzanck smear

viral culture

serology

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12
Q

An elderly woman presents with a rash on her right flank. She says that the rash appeared a few days ago and followed a recent cataract surgery. The rash is causing her terrible pain. On exam, the rash extends from the spine past the mid-axillary line in a dermatomal distribution. What can be used to treat?

A 
valacyclovir
famciclovir
acyclovir
pain meds
steroids
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13
Q

What is the appearance of molluscum contagiosum?

A

flesh colored umbilicated lesions

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14
Q

Obese 42 year old diabetic woman complains of pruritic rash underneath her breasts. Exam reveals an erythematous patchy rash underneath large, pendulous breasts. What diagnostic study would be helpful and what would be seen?

A

KOH stain

pseudohyphae

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15
Q

What medication ins preferred in the treatment of scabies?

A

permethrin

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16
Q

22 year old asian woman comes to your office. She is concerned because she notices small areas of hypopigmentation on her back. More noticeable in the summer. What is the organism that is likely causing her skin condition?

A

malassezia furfur

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17
Q

Medications that cause erythema multiforme.

A 
PCN
sulfonamides
NSAIDs
OCP
anticonvulsant
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18
Q

Distinction between erythema multiforme, stevens-johnson syndrome and toxic epidermal necrolysis?

A

SJS - involve mucous membrane and sloughing of skin, 30%

erythema multiforme does not involve mucous membrane or sloughing of skin

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19
Q

Classic presentation of psoriasis?

A

papules/plaques with silvery scale
extensor surfaces
auspitz sign (bleed with scrape)

20
Q

Classic presentation of erythema nodosum?

A

dark raised lesions on anterior shin, painful red subq nodules

21
Q

CLassic presentation of pityriasis rosea? What is the treatment?

A

herald spot that goes to xmas tree distribution

tx: supportive, UV, acyclovir, erythromycin

22
Q

Classic presentation of lichen planus?

A

pruritic, purple, polygonal papules and plaques which are flat on flexor surfaces

23
Q

What is the classic appearance of porphyria cutanea tarda?

A

chronic blistering of sun exposed skin, hypertrichosis, hyperpig, alcohol, Hep C

24
Q

Clinically, how is pemphigus vulgaris be distinguishable from bullous pemphigoid?

A

pemphigus vulgaris - flaccid blisters, oral bullae, pos nikolsky sign

bullous - tense blisters, not usually oral bullae, neg nikolsky sign

25
Q

Most important prognostic indicator in cases of melanoma?

A

thickness/depth

26
Q

Classic appearance of basal cell carcinoma?

A

pearly papule with telangiectasia

27
Q

Classic apperance of squamous cell cancer?

A

painless well demarcated scaly patch/plaque

28
Q

Dermatologic condition associated with obesity, diabetes, or malignancy

A

acanthosis nigricans

29
Q

Dermatologic condition caused by complete lack of melanocytes

A

vitiligo

30
Q

Dermatologic condition with dark skin discoloration that is particularly common in pregnant women

A

melasma

31
Q

Dermatologic condition with hair loss associated with effects of dihydrotestosterone on hair follicles

A

androgen alopecia

32
Q

Dermatologic condition with black velvety plaques on flexor surfaces and intertriginous areas

A

acanthosis nigricans

33
Q

31 year old woman has patches of hypopigmentation on her skin. Considering the associated comorbidities with this condition, what endocrine test might you order initially?

A

TSH

34
Q

Type of vascular anomaly with purple red lesion on face that does not regress with age

A

port wine stain

35
Q

Type of vascular anomaly with infant with bright red lesion that regresses over months to years

A

infantile (strawberry) hemangioma

36
Q

Type of vascular anomaly with benign small red papule that appears on skin with age

A

cherry hemangioma

37
Q

Type of vascular anomaly with bright red papule with radiating blanching vessels

A

spider angiomata

38
Q

Type of vascular anomaly with blue compressible mass that does not regress

A

cavernous hemangioma

39
Q

Type of vascular anomaly with red pink nodule on a child that is often confused with melanoma

A

spitz nevus

40
Q

Treatment for a newborn with an uncomplicated strawberry hemangioma?

A

no treatment
observe
oral propranolol

41
Q

What name is given to diffuse stress-related hair loss? What is the treatment?

A

telogen effluvium

reassurance and avoiding stress

42
Q

rash described as dew drops on a rose petal?

A

primary varicella (chickenpox)

43
Q

Patient presents with a painless, pruritic papule with regional LAD that evolves over 7-10 days into a necrotic ulcer with a black eschar. What is the diagnosis and treatment?

A

Dx: cutaneous anthrax

tx: PCN V, PCN G, azi, doxy

44
Q

First line treatment for pediculosis capitis and pediculosis pubis?

A

permethrin

45
Q

congenital infection presenting with blueberry muffin rash?

A

rubella

46
Q

child has flesh colored umbilicated lesions to the face. What are those lesions, where do they appear in adults?

A

molluscum contagiosum

genitals

Step 2 CK (16 decks)

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