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JID VisualDx Quiz: August 2014

      QUESTIONS

      • 1.
        What is your diagnosis?
        • a.
          Pemphigus foliaceus.
        • b.
          Pemphigus vulgaris.
        • c.
          Staphylococcal scaled skin syndrome.
        • d.
          Toxic epidermal necrolysis.
        • e.
          Seborrheic dermatitis.
      • 2.
        UV light is associated with which of the following?
        • a.
          Worsening of pemphigus.
        • b.
          Activation of lupus erythematosus.
        • c.
          Upregulation of desmoglein proteins.
        • d.
          Decreased all-cause mortality.
        • e.
          All of the above.
      • 3.
        Based on the work cited below, which is true about the role of desmoglein in epithelial repair?
        • a.
          It is reduced by UV light.
        • b.
          It plays a role in cell adhesion.
        • c.
          It is restored by trichostatin A.
        • d.
          It increases expression of desmocollin.
        • e.
          All of the above.

      TOPIC ARTICLE

      Answers are available as supplementary material at http://dx.doi.org/10.1038/jid.2014.239.
      Additional images related to this condition and the differential diagnosis may be found at: http://info.visualdx.com/l/11412/2014-05-27/w1krp

      Appendix