Skin Anatomy
Skin Diseases
Medications
Signs & Syndromes
Diagnosis & Pearls
100

This layer of skin contains keratinocytes, melanocytes, and Langerhans cells.

What is the epidermis?

100

This common condition causes silvery scales on extensor surfaces.

What is psoriasis?

100

This topical class is commonly used to reduce inflammation in eczema.

What are corticosteroids?

100

The sign in which lateral eyebrow thinning is seen in hypothyroidism.

What is Queen Anne’s sign?

100

The rule used to evaluate suspicious pigmented lesions.

What is the ABCDE rule?

200

These structures produce sebum.

What are sebaceous glands?

200

“Target” lesions are characteristic of this hypersensitivity reaction.

What is erythema multiforme?

200

This oral retinoid is used to treat severe cystic acne.

What is isotretinoin?

200

Herald patch followed by a “Christmas tree” pattern.

What is pityriasis rosea?

200

Potassium hydroxide prep is used to identify this type of skin infection.

What is a fungal infection (dermatophyte)?

300

The protein responsible for the waterproof barrier of the skin.

What is keratin?

300

This blistering disorder is caused by autoantibodies against desmoglein 3.

What is pemphigus vulgaris?

300

Antifungal used to treat tinea corporis.

What is terbinafine?

300

Skin finding in dermatomyositis with a violaceous rash on eyelids.

What is a heliotrope rash?

300

Tzanck smear is used to detect this type of virus.

What is herpes simplex or varicella-zoster virus?

400

The immune cell type found in the stratum spinosum.

What are Langerhans cells?

400

This skin cancer has “pearly” borders and telangiectasias.

What is basal cell carcinoma?

400

This immunosuppressive drug is used for psoriasis and requires renal monitoring.

What is cyclosporine?

400

Sudden appearance of multiple seborrheic keratoses may indicate internal malignancy.

What is the Leser–Trélat sign?

400

This dermatosis presents with “sawtooth” infiltrate of lymphocytes at the dermoepidermal junction.

What is lichen planus?

500

This is the thickest layer of the skin and contains blood vessels and nerves.

What is the dermis?

500

This life-threatening condition involves epidermal detachment of >30% body surface area.


What is toxic epidermal necrolysis (TEN)?

500

Monoclonal antibody used to treat moderate-to-severe atopic dermatitis.

What is dupilumab?

500

Genetic syndrome with mucocutaneous pigmentation and GI polyps.

What is Peutz–Jeghers syndrome?

500

This condition presents with café-au-lait macules and axillary freckling.

What is neurofibromatosis type 1?