Dermatologist Certificate Cheat Sheet 2026
The 30 highest-yield Dermatologist Certificate facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.
- What is the mechanism by which UV radiation causes DNA damage leading to skin cancer? → Formation of cyclobutane pyrimidine dimers (CPDs) and 6-4 photoproducts in DNA
- Which histological subtype of basal cell carcinoma carries the highest risk of recurrence and invasion? → Morpheaform (sclerosing/infiltrative) BCC
- What is the indication of pemphigus foliceus? → Young to middle age adults
- Calcineurin inhibitors (tacrolimus and pimecrolimus) are used as steroid-sparing agents for which condition? → Atopic dermatitis, especially on the face and intertriginous areas
- Subepidermal blisters with neutrophilic microabscesses in dermal papillae are histologically characteristic of which condition? → Dermatitis herpetiformis
- Which of the following treatments for acne would be recommended? → Accutane
- Ivermectin 1% cream is approved for topical treatment of which skin condition? → Rosacea (papulopustular subtype)
- Impetigo caused by Staphylococcus aureus most characteristically produces which type of lesion? → Honey-colored crusted lesions and bullae from exfoliative toxins
- Dupilumab (Dupixent) works by blocking the receptor for which cytokines in atopic dermatitis? → IL-4 and IL-13
- Parakeratosis is defined as which histological finding? → Retention of nuclei within the stratum corneum
- What is the primary mechanism by which benzoyl peroxide treats acne? → Releases free oxygen radicals that are bactericidal against Cutibacterium acnes
- Solar elastosis is characterized by which histological finding in the dermis? → Basophilic degeneration and clumping of elastic fibers
- A 'Grenz zone' on dermatopathology refers to which histological finding? → A band of spared papillary dermis between the epidermis and a dermal infiltrate
- Which of the following conditions also goes by the name "ringworm"? → tinea corporis
- What is the pathognomonic skin finding of Kawasaki disease in children? → Polymorphous exanthem with desquamation of fingertips in the recovery phase
- What is the recommended surgical margin for a primary melanoma with Breslow thickness between 1.01–2.0 mm? → 1–2 cm wide local excision
- What skin findings are associated with celiac disease beyond dermatitis herpetiformis? → Aphthous ulcers, angular cheilitis, and alopecia
- Which topical medication is first-line for treating cradle cap (infantile seborrheic dermatitis) on the scalp? → Gentle emollient oils and mild antifungal shampoos
- Which mite is responsible for scabies infestation? → Sarcoptes scabiei var. hominis
- What is the recommended first-line topical treatment for localized superficial basal cell carcinoma? → Imiquimod 5% cream
- The skin's vascular layer is called the? → dermis
- Photodynamic therapy (PDT) with aminolevulinic acid (ALA) is FDA-approved for treatment of which condition? → Actinic keratoses
- A teenager presents with grouped erythematous papules and nodules along the jawline and perioral area. Which hormonal influence is most implicated? → Androgens stimulating sebaceous gland activity and sebum production
- Which dermatological condition is associated with Nikolsky sign — skin separation with lateral pressure? → Pemphigus vulgaris
- What condition cause a scaly dermatitis to afflict areas of the skin that receive oil gland supply? → seborrheic dermatitis
- Which laser is specifically used for tattoo removal based on the principle of selective photothermolysis? → Q-switched Nd:YAG, alexandrite, or ruby laser
- A child presents with thick, hyperkeratotic plaques on the elbows, knees, and scalp with nail pitting. Which condition is most likely? → Childhood psoriasis
- Which skin finding is pathognomonic for Lyme disease? → Erythema migrans — expanding annular erythema at tick bite site
- Gianotti-Crosti syndrome (papular acrodermatitis of childhood) is most commonly associated with which viral infection? → Epstein-Barr virus (EBV)
- Livedo reticularis presenting with systemic thrombosis and recurrent pregnancy loss suggests which underlying condition? → Antiphospholipid syndrome
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