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Leik Derm Review Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What is the most common cause of acne vulgaris?
- Fungal infection
- Viral infection
- Allergic reaction
✔✔B. Increased sebum production and follicular hyperkeratinization
Which skin lesion is characteristic of psoriasis?
- Vesicles with honey-colored crust
- Pustules on erythematous base
- Target lesions
✔✔C. Well-demarcated, silvery scaly plaques
What is the first-line treatment for mild to moderate atopic dermatitis?
- Oral corticosteroids
- Antibiotics 1 / 3
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✔✔C. Topical corticosteroids
- Antifungal creams
A patient presents with a sudden onset of a painful, erythematous, swollen lower leg with fever.What is the most likely diagnosis?
- Cellulitis
- Contact dermatitis
- Psoriasis
✔✔C. Erysipelas
Which skin condition is associated with the “Auspitz sign” (pinpoint bleeding when scales are removed)?
- Seborrheic dermatitis
- Eczema
- Lichen planus
✔✔B. Psoriasis
What is the classic appearance of basal cell carcinoma? 2 / 3
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- Irregular dark pigmented lesion
- Scaly plaque with central ulceration
- Raised, velvety lesion
✔✔B. Pearly, translucent papule with telangiectasia
Which organism most commonly causes impetigo?
- Candida albicans
- Herpes simplex virus
- Pseudomonas aeruginosa
✔✔C. Staphylococcus aureus
What is the hallmark feature of lichen planus?
- Honey-colored crusts
- Target lesions
- Bullae
✔✔C. Purple, polygonal, pruritic papules
Which treatment is preferred for tinea corporis?
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