Derm exam studying Flashcards
A positive Nikolsky sign is associated with:
a) Psoriasis
b) Pemphigus
c) Eczema
d) Rosacea
b) Pemphigus
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.
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.
A “target lesion” is a characteristic finding in:
a) Psoriasis
b) Eczema
c) Erythema multiforme
d) Rosacea
c) Erythema multiforme
Which skin condition discussed is caused by scratching yourself repeatedly in the same spot?
Lichen simplex chronicus
A patient has localized, round patches of hair loss with “exclamation point hairs.” This is most consistent with what?
Alopecia areata
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)
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)
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
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)
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)
Which form of cancer should you never ever do a shave biopsy of, even if you’re just suspicious of it?
Melanoma
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
Mohs surgery is particularly recommended for which type of BCC?
a) Superficial
b) Nodular
c) Morpheaform
d) Pigmented
c) Morpheaform
Ill-defined borders and a scar-like appearance are characteristic of what type of BCC?
Morpheaform
True or false: Mohs (MMS) is recommended for cosmetically sensitive areas
True
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
Is impetigo fungal, bacterial, or viral?
Bacterial
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
The “Great Imitator/Masquerader” is what?
Syphilis
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
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
