Dermatology Board Exam Started: Jul 13, 2026 02:32 Page 10 of 53 Attempt #1695 Overall: 0 / 264 questions answered Question 46 / 264 Not answered At a preventive-care consultation: 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 47 / 264 Not answered At a primary-care follow-up visit: 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 48 / 264 Not answered At a primary-care follow-up visit: 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 49 / 264 Not answered At a preventive-care consultation: 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 Question 50 / 264 Not answered During preoperative 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 Cancel « ← Previous Page 10 of 53 Next → »