A patient presents with sudden onset of diffuse erythroderma (>90% body surface area redness and scaling), with chills and tachycardia. This is most commonly a complication of: A) Atopic dermatitis B) Psoriasis C) Contact dermatitis D) Scabies
Koilonychia (spoon-shaped nails) is classically associated with: A) Psoriasis B) Iron deficiency anemia C) Fungal infection D) Lichen planus dermatology mcq pdf
A patient with fair skin has a new 6 mm pigmented lesion with irregular borders, variegated color, and recent change. Best next step: A) Topical 5-FU B) Shave biopsy C) Excisional biopsy with 1-2 mm margins D) Observation for 3 months A patient presents with sudden onset of diffuse
A 5-year-old has honey-colored crusted lesions around the nares and on the face. Gram stain shows Gram-positive cocci in chains. Best initial therapy: A) Oral vancomycin B) Topical mupirocin C) Oral acyclovir D) Topical clotrimazole Gram stain shows Gram-positive cocci in chains
A 70-year-old man has tense bullae on the trunk and proximal limbs, with no mucosal lesions. Direct immunofluorescence shows linear IgG along the basement membrane. Diagnosis: A) Pemphigus vulgaris B) Bullous pemphigoid C) Dermatitis herpetiformis D) Epidermolysis bullosa acquisita
The most common initial site of involvement in pityriasis rosea is: A) Palms and soles B) Trunk (herald patch) C) Scalp D) Face
Yellow-green fluorescence. Vitiligo = no fluorescence; Pityriasis alba = no fluorescence; Tinea capitis (M. canis) = blue-green, but this is on the face/trunk.
