Dermatologist MCQs (Prometric)

A 38-year-old woman with established Raynaud disease requests treatment of a persistent periungual common wart. The digit has normal skin integrity and no secondary infection. Which proposed treatment should specifically be avoided because of her vascular disorder?

A patient has a small inflammatory papule for which epidermis, full dermis, and superficial subcutis are required for clinicopathologic correlation. The sampling technique illustrated is being considered. Which biopsy method is shown?

A 32-year-old has moderate-to-severe atopic dermatitis affecting 22% of body surface area with persistent nocturnal itch despite optimized moisturizers, topical corticosteroids, and topical calcineurin inhibitors. Frequent travel makes regular office phototherapy impractical, and durable long-term control is desired. Which escalation is most appropriate?

A 42-year-old has an intensely pruritic ankle lesion for six months and admits repeatedly rubbing the area, especially at night. KOH microscopy is negative. The current lesion is shown. Which diagnosis is most likely?

A 26-year-old has progressively enlarging, asymptomatic pale patches on both ankles and dorsal feet. There is no scale, preceding inflammation, or sensory loss. Their appearance under long-wave ultraviolet illumination is shown. Which diagnosis best fits the findings?

A 63-year-old woman receiving maintenance hemodialysis develops rapidly worsening, exquisitely painful lesions on the thighs and lower abdomen. The representative lesion is shown. She is afebrile and peripheral pulses are palpable. What is the most appropriate next management approach?

A 78-year-old woman develops several rapidly enlarging nodules on both lower legs. Biopsy shows primary cutaneous diffuse large B-cell lymphoma, leg type, with CD20, BCL2, and MUM1 expression. Staging excludes visceral disease. Which treatment is the most appropriate systemic backbone?

A 6-year-old has three localized crusted lesions around the nose after minor scratching. He is afebrile, has no rapidly spreading erythema, and no household history of MRSA. Examination is otherwise normal. Which treatment is most appropriate for this limited nonbullous impetigo?

A 23-year-old woman develops an abrupt widespread eruption ten days after a sore throat that has now resolved. She has no previous chronic skin disease, fever, or mucosal lesions. The representative trunk appearance is shown. Which diagnosis is most likely?

A 51-year-old with diffuse cutaneous systemic sclerosis develops headache and rapidly increasing blood pressure from 118/72 mmHg to 188/112 mmHg. Serum creatinine rises from 0.8 to 2.1 mg/dL over several days. Which treatment should be initiated immediately?