Biological Agents in Dermatology — MCQs

All these drugs are known to exacerbate psoriasis, except:

Which interleukin is specifically secreted by Th17 cells?

Live vaccines are contraindicated in all except:

Which of the following statements is true regarding omalizumab?

N95 mask is used for:

What is the correct term for candidiasis of the penis?

A 25-year-old female presents with the following lesions in the axilla, as shown by the arrow:

The following lesion appears on the leg of a patient of ulcerative colitis. All are useful in management except:

A 55-year-old woman presents with painful oral erosions and minimal skin involvement for 3 months. Nikolsky sign is positive on the oral mucosa. Serum is sent for autoantibody testing. Histology of a perilesional biopsy shows suprabasal acantholysis with a tombstone row of basal keratinocytes (Image). In this predominantly mucosal variant of pemphigus vulgaris, which autoantibody titre best correlates with mucosal disease activity and guides decisions about tapering systemic immunosuppression?

A 24-year-old man presents to the emergency department with a 3-day history of a rapidly spreading rash on his hands and forearms. He had a cold sore on his lip 10 days ago. He denies any new medications. There is no mucosal involvement. The rash is shown (Image 2). Which of the following statements best describes the underlying immunopathological mechanism responsible for this eruption?