Simon presents with alopecia areata with well-circumscribed patches of hair loss on the crown of his head. How do you respond when he asks you the cause?
The cause is unknown, but we suspect it is due to an immunologic mechanism.
Which of the following is "a linear crack extending from the epidermis to the dermis"?
A fissure
A bulla is:
A vesicle larger than 1 cm in diameter.
An example of ecchymosis is:
A bruise.
When looking under the microscope to diagnose an intravaginal infection, you see a cluster of small and oval to round shapes. What do you suspect they are?
Spores
Your patient is in her second trimester of pregnancy and has a yeast infection. Which of the following is a treatment that you usually order in nonpregnant patients but is listed as a Pregnancy category C?
Diflucan 150 mg
Tinea unguium is also known as:
Onychomycosis.
Sally, aged 25, presents with impetigo that has been diagnosed as infected with staphylococcus. The clinical presentation is pruritic tender, red vesicles surrounded by erythema with a rash that is ulcerating. She has not been adequately treated recently.
Ecthyma
Mark has necrotizing fasciitis of his left lower extremity. Pressure on the skin reveals crepitus due to gas production by which anaerobic bacteria?
Clostridium perfringens
When using the microscope for an intravaginal infection, you see something translucent and colorless. What do you suspect?
Hyphae
Marci has a wart on her hand. She says she heard something about "silver duct tape therapy." What do you tell her about his?
It is a simple treatment that should be tried first.
Which is the most potent and irritating dose of tretinoin?
0.05% liquid formulation
Which of the following types of cellulitis is a streptococcal infection of the superficial layers of the skin which does not involve the subcutaneous layers?
Erysipelas
Mandy presents with a cauliflower-like wart that is in her anogenital region. You suspect it was sexually transmitted and document this as a:
Condyloma accuminata.
Jeffrey has atopic dermatitis. You are prescribing a low-dose topical corticosteroid for him. Which would be a good choice?
Hydrocortisone base 2.5%
Harvey has a rubbery, smooth, round mass on his chest which is compressible and has a soft to very firm texture. What do you diagnose this as?
A lipoma
Which of the following statements is accurate when you are removing a seborrheic keratosis lesion using liquid nitrogen?
Use gel foam to control bleeding.
The "B" in the ABCDEs of assessing skin cancer represents:
Border irregularity.
The majority of HSV-1 and HSV-2 infections are asymptomatic, so that only which elevated antibody titer shows evidence of previous infection?
IgG
Which of the following patients is more susceptible to irritant contact dermatitis?
Jill, aged 50, who has venous stasis in her lower extremities
Prevalence of psoriasis is highest in which group?
Scandinavians
The most common precancerous skin lesion found in Caucasians is:
Actinic keratosis.
Ian, age 62, presents with a wide, diffuse area of erythematous skin on his left lower leg that is warm and tender to palpation. There is some edema involved. You suspect:
Cellulitis.
Josh, aged 22, has tinea versicolor. Which description is the most likely for this condition?
There are round hypopigmented macules on his back.
Tori is on systemic antifungals for a bad tinea infection. You are aware that they may cause:
Hepatotoxicity.