Dermatology Board Exam Started: Jul 13, 2026 00:46 Page 8 of 53 Attempt #1431 Overall: 0 / 264 questions answered Question 36 / 264 Not answered During an emergency department assessment: An elderly patient has tense itchy bullae on erythematous skin and negative Nikolsky sign. What is likely? A. Pemphigus vulgaris B. Stevens-Johnson syndrome C. Varicella D. Cellulitis E. Bullous pemphigoid Show Answer & Explanation Correct Answer: E Explanation: [Dermatology] Tense pruritic bullae in older adults with negative Nikolsky sign suggest bullous pemphigoid. Reference: European Dermatology Forum Bullous Pemphigoid Guideline. Reference: Comments & Discussion No comments yet. Be the first to comment! Your Name * Your Comment * (Max 200 chars) 200 characters remaining Post Comment Comments remaining this hour: 10/10 Question 37 / 264 Not answered During an emergency department assessment: A patient has well-demarcated erythematous plaques with silvery scale on extensor elbows. What is the diagnosis? A. Tinea versicolor B. Urticaria C. Rosacea D. Plaque psoriasis E. Bullous pemphigoid Show Answer & Explanation Correct Answer: D Explanation: [Dermatology] Extensor plaques with silvery scale are classic plaque psoriasis. Reference: American Academy of Dermatology Psoriasis Guideline. Reference: Comments & Discussion No comments yet. Be the first to comment! Your Name * Your Comment * (Max 200 chars) 200 characters remaining Post Comment Comments remaining this hour: 10/10 Question 38 / 264 Not answered During an emergency department assessment: A patient has pruritic burrows in finger webs and worse itching at night; family members itch too. What is the diagnosis? A. Atopic dermatitis only B. Cellulitis C. Scabies D. Herpes zoster E. Pemphigus vulgaris Show Answer & Explanation Correct Answer: C Explanation: [Dermatology] Nocturnal pruritus, burrows, and household spread suggest scabies. Reference: CDC Scabies Clinical Care Guidance. Reference: Comments & Discussion No comments yet. Be the first to comment! Your Name * Your Comment * (Max 200 chars) 200 characters remaining Post Comment Comments remaining this hour: 10/10 Question 39 / 264 Not answered During an emergency department assessment: A 70-year-old has a pearly papule with rolled border and telangiectasia on the nose. What is the likely diagnosis? A. Seborrheic keratosis only B. Basal cell carcinoma C. Tinea corporis D. Eczema E. Urticaria Show Answer & Explanation Correct Answer: B Explanation: [Dermatology] Pearly rolled border with telangiectasia on sun-exposed skin suggests basal cell carcinoma. Reference: NCCN Basal Cell Skin Cancer Guidelines. Reference: Comments & Discussion No comments yet. Be the first to comment! Your Name * Your Comment * (Max 200 chars) 200 characters remaining Post Comment Comments remaining this hour: 10/10 Question 40 / 264 Not answered During an emergency department assessment: A child has honey-colored crusted erosions around the mouth. What is the most likely diagnosis? A. Impetigo B. Psoriasis C. Melanoma D. Scabies E. Urticaria Show Answer & Explanation Correct Answer: A Explanation: [Dermatology] Honey-colored crusts on superficial erosions are typical of impetigo. Reference: NICE Impetigo Antimicrobial Prescribing Guideline. Reference: Comments & Discussion No comments yet. Be the first to comment! Your Name * Your Comment * (Max 200 chars) 200 characters remaining Post Comment Comments remaining this hour: 10/10 Cancel « ← Previous Page 8 of 53 Next → »