Kirsner, Robert S.

Ollague, Jose E.

Elsevier - Publisher Connector 

© 2014 The Society for Investigative Dermatology www.jidonline.org 1
JID VisualDx Quiz
QUESTIONS
1. What is your diagnosis?
 a. Phytophotodermatitis.
 b. Polymorphous light eruption.
 c. Fixed drug reaction. 
 d. Porphyria cutanea tarda.
 e. Phototoxic reaction.
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
1Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
Image appears with permission from VisualDx.  © Logical Images, Inc.
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.
JID VisualDx Quiz
2 Journal of Investigative Dermatology (2014), Volume 134 
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
Answers are available as supplementary material at http://dx.doi.org/10.1038/jid.2014.394.
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: 
Answers are available as supplementary material 
at http://dx.doi.org/10.1038/jid.2014.394.
Additional images related to this condition and the differ-
ential diagnosis may be found at http://info.visualdx.com/
l/11412/2014-03-11/vnc9k<1>


JID VisualDx Quiz: November 2014 

Jose E. Ollague

Robert S. Kirsner

Crossref

Journal of Investigative Dermatology