JID VisualDx Quiz

JID VisualDx Quiz: November 2014 Jose E. Ollague1 and Robert S. Kirsner1 Journal of Investigative Dermatology (2014) 134, e22. doi:10.1038/jid.2014.394

JID and Logical Images, Inc., have cooperated to offer the JID VisualDx Quiz, incorporating diagnostic images from VisualDx’s vast database. Questions relate to the image as well as to selected articles in JID, which are listed after the questions. Answers will be posted as supplementary material. We hope you enjoy this challenge.

Image appears with permission from VisualDx. © Logical Images, Inc.

QUESTIONS 1.  What is your diagnosis?  a. Phytophotodermatitis.   b.  Polymorphous light eruption.   c.  Fixed drug reaction.   d.  Porphyria cutanea tarda.  e. Phototoxic reaction.

Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA

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© 2014 The Society for Investigative Dermatology

www.jidonline.org

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JID VisualDx Quiz

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2. In which of the following photoinduced conditions is UVB the wavelength implicated in disease development?  a. Erythropoietic protoporphyria.  b. Lupus.  c. Melanoma.  d. Phototoxic reactions.   e.  Erythema ab igne. 3.  Intense intermittent exposure to sunlight is associated with which of the following?   a.  Increased DNA damage in skin.   b.  Increased urinary T-T dimers.   c.  Reversal of vitamin D insufficiency.  d. Melanoma.   e.  All of the above.

TOPIC ARTICLE Questions 2 and 3 refer to the following article: Petersen B, Wulf HC, Triguero-Mas M et al. (2014) Sun and ski holidays improve vitamin D status, but are associated with high levels of DNA damage. J Invest Dermatol 134:2806–13

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Answers are available as supplementary material at http://dx.doi.org/10.1038/jid.2014.394.

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Journal of Investigative Dermatology (2014), Volume 134

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JID VisualDx Quiz: November 2014.

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