Derm exam studying Flashcards by Morgan Evans

A positive Nikolsky sign is associated with:
a) Psoriasis
b) Pemphigus
c) Eczema
d) Rosacea

b) Pemphigus

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Which of the following is NOT a common location for lesions associated with lichen simplex chronicus?
a) Scalp
b) Neck
c) Lower legs
d) Palms

d) Palms.
LSC typically appears on the scalp, neck, extensor forearms, scrotum, and lower legs, not palms.

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Which of the following is a common cause of folliculitis?
a) Nickel exposure
b) Prolonged antibiotic use
c) Plant exposure
d) Genetic predisposition

b) Prolonged antibiotic use
Prolonged antibiotic use is a risk factor for folliculitis, especially when it’s caused by staph aureus.

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A “target lesion” is a characteristic finding in:
a) Psoriasis
b) Eczema
c) Erythema multiforme
d) Rosacea

c) Erythema multiforme

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Which skin condition discussed is caused by scratching yourself repeatedly in the same spot?

Lichen simplex chronicus

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A patient has localized, round patches of hair loss with “exclamation point hairs.” This is most consistent with what?

Alopecia areata

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Which of the following best describes the appearance of condyloma acuminata?
a) Single or multiple dome-shaped papules with umbilication
b) Soft flesh-colored, cauliflower-like papules
c) Grouped vesicles on an erythematous base
d) Circular lesion with erythematous border and scale

b) Soft flesh-colored, cauliflower-like papules
(condyloma acuminata = aka anogenital warts)

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Which of the following is a common treatment for non-genital verrucae?
a) Imiquimod cream only
b) Salicylic/lactic acid, imiquimod, cryotherapy
c) PO Diflucan
d) IV acyclovir

b) Salicylic/lactic acid, imiquimod, cryotherapy
(non-genital verrucae = aka warts)

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A patient presents with a painful rash following a unilateral dermatomal pattern. Which of the following is most likely?
a) VZV/HHV-3 chickenpox
b) VZV/HHV-3 shingles
c) Herpes Simplex
d) Cutaneous candidiasis

b) shingles

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Which of the following is a common symptom of cutaneous candidiasis?
a) Hypo-pigmented skin patches with scale
b) Pruritic papules and patches, often with satellite lesions
c) Fever and malaise
d) Hair loss

Pruritic papules and patches, often with satellite lesions
(this is the folds-of-skin condition)

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Which of the following is the most common type of skin cancer?
Squamous Cell Carcinoma (SCC)
Melanoma
Basal Cell Carcinoma (BCC)
Kaposi Sarcoma

Basal Cell Carcinoma (BCC)

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Which form of cancer should you never ever do a shave biopsy of, even if you’re just suspicious of it?

Melanoma

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A patient presents with a pearly, translucent nodule with telangiectasia. This is most likely:
a) Morpheaform BCC
b) Nodular BCC
c) Pigmented BCC
d) Superficial SCC

b) Nodular BCC

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Mohs surgery is particularly recommended for which type of BCC?
a) Superficial
b) Nodular
c) Morpheaform
d) Pigmented

c) Morpheaform

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Ill-defined borders and a scar-like appearance are characteristic of what type of BCC?

Morpheaform

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True or false: Mohs (MMS) is recommended for cosmetically sensitive areas

True

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Which bacterial organism is most commonly associated with abscesses?
a) Group A streptococcus
b) Treponema pallidum
c) Staphylococcus aureus
d) Beta-hemolytic strep

Staphylococcus aureus

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Is impetigo fungal, bacterial, or viral?

Bacterial

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A patient has a large area of non-blanching erythema. The skin is still intact. This could be which stage of a pressure ulcer?

Stage I

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The “Great Imitator/Masquerader” is what?

Syphilis

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During skin cell formation, cells secrete what protein that makes up the matrix that protects the skin and gives it strength?
a) Collagen
b) Keratin
c) Albumin
d) Squamous

b) Keratin

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Which common skin disorder is found on the scalp and behind the ears?
a) Psoriasis
b) Acne
c) Tinea capitis
d) Seborrheic dermatitis

d) Seborrheic dermatitis

What two things form a matrix to protect the skin and give it strength?

Keratin and lipids

Which common skin disorder is found between the fingers?
a) Scabies
b) Lichen simplex
c) Tinea pedis
d) Tinea versicolor

a) Scabies

Which of the following is NOT a common skin disorder found in the mouth? a) Leukoplakia b) Lichen planus c) Lichen simplex d) Candidiasis

c) Lichen simplex

Psoriasis is an example of which classification of skin lesions?

Plaque

Define tumor

Nodule >2cm

List the 3 Sx of chronic eczema

Xerosis, lichenification, pruritis

List the 3 Sx of acute eczema

Pruritis, erythema, vesiculation

Name a condition on the hands that needs to be treated w strong steroids (or PO prednisone if severe)

Dyshidrotic eczema

What are the treatments for lichen simplex chronicus?

D/c scratching!, occlusive bandages, topical steroids, tar preps, IL steroids (small lesions), PO hydroxyzine

Coin-shaped plaques that are highly pruitic and on an erythematous base are what? How do you Tx?

Nummular eczema Moisturizer, topical steroid, PUVA or UVB

What can you give for severe contact dermatitis?

PO prednisone

Wet dressings/Burrow’s solution (OTC) is a Tx for what kind of dermatitis?

Contact

What type of dermatitis can be treated with compression stockings?

Stasis

The itch-scratch-itch cycle is characteristic of what kind of dermatitis? How is it treated?

Atopic Txs: avoid scratching, wet dressings, topical steroids, topical or PO antibiotics, hydration, emollients, topical calcineurin inhibitors, PO H1 antihistamines, **PO steroids only for severe intractable cases**

What type of dermatitis is common in ppl with HIV, Parkinson’s, or nutritional deficiencies (zinc)?

Seborrheic

What is the treatment for a dusky red to violaceous, sharply demarcated macule that a patient gets after taking NSAIDs or OCPs? a) Discontinue taking the NSAID b) Hydrocortisone cream c) Better hygiene practices d) PO steroids for all cases

a) Discontinue taking the NSAID

HSV-6 & HSV-7 can cause what condition that starts with one patch?

Pityriasis rosea

Topical & PO steroids or cyclosporine can treat what purple condition?

Lichen planus

Which of the following is not a descriptor of Lichen Planus? a) Purple b) Polygonal and flat c) Patches d) Itchy papules

c) Patches

Which dermatologic condition is usually preceded by a strep infection? Plaque psoriasis Contact dermatitis Lichen planus Guttate psoriasis

Guttate psoriasis

A 16 year old male presents to your clinic with target like lesions on their torso, arms, face and palms of the hands. He also has what appears to be an abruption of cold sores on hip lips that makes it hard for him to eat food and talk. There is no mucosal involvement of said lesions. Since he has some disabling oral lesions, what would be the most likely course of treatment? a) Hydrocortisone cream TID b) Topical steroids only c) PO steroids d) IM steroids

c) PO steroids

90% of the time what is affected by SJS? What is rarely affected?

Mucous membranes; palms/ soles

Which is soft, pemphigoid or pemphigus?

Pemphigus

Pemphigoids are often seen in who?

Elderly

How to treat bullous pemphigoid?

TX- PO, topical steroids 50-100 mg QD or immunosuppressives

What autoimmune condition often starts with urticarial eruption and turns into bullae?

Bullous pemphigoid

Which is + Nikolsky sign, pemphigoid or pemphigus?

pemphigus

Topical antibiotics and benzoyl peroxide gels are the mainstay of treating what conditions?

Acne vulgaris (mild) and folliculitis

PO isotretinoin cannot be taken with what?

Tetracyclines

Select the false statement regarding Pemphigus: Easily rupture Most commonly seen in autoimmune adults ages 40-60 Nikolsky sign + Most commonly seen in autoimmune adults ages 60-80

Most commonly seen in autoimmune adults ages 60-80