These are real published questions used in MedQgulf practice sessions. Sign up for the full bank to access every dermatology mcqs.
Sample 1·Dermatology
A patient develops widespread targetoid lesions with mucosal involvement 2 weeks after starting lamotrigine. Diagnosis?
- AErythema multiforme minor
- ✓Stevens-Johnson syndrome
- CDRESS
- DPemphigus vulgaris
Explanation
SJS: drug reaction with mucocutaneous involvement <10% BSA; anticonvulsants and sulfa drugs common triggers.
Sample 2·Dermatology
A 40-year-old presents with intensely itchy rash worse at night, involving finger webs and wrists. Household contacts affected. Treatment?
- ATopical steroid
- ✓Permethrin 5% cream
- COral ivermectin only
- DEmollient
Explanation
Scabies is first-line treated with permethrin 5% cream; treat all household contacts simultaneously.
Sample 3·Dermatology
A 50-year-old has flushing, telangiectasia and papulopustules on cheeks and nose without comedones. Diagnosis?
- AAcne vulgaris
- ✓Rosacea
- CSLE
- DSeborrhoeic dermatitis
Explanation
Rosacea: central facial erythema, telangiectasia, papulopustules and flushing without comedones.
Sample 4·Dermatology
A 25-year-old presents with well-demarcated erythematous plaques with silvery scale on extensor surfaces. Diagnosis?
- AEczema
- ✓Psoriasis
- CLichen planus
- DTinea corporis
Explanation
Chronic plaque psoriasis: well-defined salmon-pink plaques with silvery scale on extensors.
Sample 5·Dermatology
A 60-year-old has painful vesicular rash in a T5 dermatomal distribution. Best treatment within 72 hours?
- ✓Oral aciclovir
- BTopical steroid
- COral prednisolone
- DTopical mupirocin
Explanation
Herpes zoster: oral antivirals (aciclovir/valaciclovir/famciclovir) within 72 hours reduce postherpetic neuralgia.