RT Book, Section
A1 Usatine, Richard P.
A1 Smith, Mindy A.
A1 Chumley, Heidi S.
A1 Mayeaux, E.J.
SR Print(0)
ID 57683986
T1 Chapter 200. Erythema Ab Igne
T2 The Color Atlas of Family Medicine, 2e
YR 2013
FD 2013
PB The McGraw-Hill Companies
PP New York, NY
SN 978-0-07-176964-8
LK accessmedicine.mhmedical.com/content.aspx?aid=57683986
RD 2024/04/23
AB A  50-year-old  woman  presented  to  the  office  with  bilateral  erythematous  lesions  on  the  inner  aspects  of  both  of  her  lower  extremities  (Figures  200-1  and  200-2).  The  lesions  started  developing  for  the  past  6  months.  They  became  progressively  more  noticeable  but  stayed  localized  in  the  inner  aspects  of  the  lower  extremities.  She  mentioned  that  she  was  using  a  hot-water  bottle  in  the  area  involved  to  keep  her  warm  at  night  when  she  was  sleeping  in  bed.  Although  our  working  clinical  diagnosis  was  erythema  ab  igne,  clinical  entities  such  as  livedo  reticularis,  poikiloderma  atrophicans  vasculare,  and  acanthosis  nigricans  were  also  considered  in  the  differential  diagnosis.  A  skin  biopsy  was  performed  and  confirmed  the  diagnosis  of  erythema  ab  igne.  The  patient  was  advised  to  abandon  the  hot-water  bottle  application  to  the  skin.  Over  the  course  of  4  months  her  skin  lesions  started  to  clear  with  no  further  intervention.