RT Book, Section
A1 Vandergriff, Travis W.
A1 Bergstresser, Paul R.
A2 Goldsmith, Lowell A.
A2 Katz, Stephen I.
A2 Gilchrest, Barbara A.
A2 Paller, Amy S.
A2 Leffell, David J.
A2 Wolff, Klaus
SR Print(0)
ID 56051339
T1 Chapter 91. Abnormal Responses to Ultraviolet Radiation: Idiopathic, Probably Immunologic, and Photoexacerbated
T2 Fitzpatrick's Dermatology in General Medicine, 8e
YR 2012
FD 2012
PB The McGraw-Hill Companies
PP New York, NY
SN 978-0-07-166904-7
LK accessmedicine.mhmedical.com/content.aspx?aid=56051339
RD 2024/04/19
AB Abnormal  responses  to  ultraviolet  radiation  (UVR)  exposure  divide  into  four  categories  (Table  91-1):  (1)  acquired  idiopathic,  presumed  immunologic;  (2)  DNA  repair  defect  disorders;  (3)  chemical  and  drug  photosensitivity,  including  the  porphyrias;  and  (4)  photoexacerbated  dermatoses  not  caused  directly  by  UVR.  The  first  and  last  categories  and  an  approach  to  assessing  photosensitivity  are  covered  in  this  chapter.  The  other  categories  are  covered  in  other  chapters  in  this  book.  Diagnosis  of  photodistributed  eruptions  is  discussed  in  Box  91-1  and  Figure  91-1,  and  the  entities  are  discussed  in  the  following  sections.