RT Book, Section
A1 Ahn, Christine S.
A1 Huang, William W.
A2 Kang, Sewon
A2 Amagai, Masayuki
A2 Bruckner, Anna L.
A2 Enk, Alexander H.
A2 Margolis, David J.
A2 McMichael, Amy J.
A2 Orringer, Jeffrey S.
SR Print(0)
ID 1162814686
T1 Erythema Annulare Centrifugum and Other Figurate Erythemas
T2 Fitzpatrick's Dermatology, 9e
YR 2019
FD 2019
PB McGraw-Hill Education
PP New York, NY
SN 9780071837798
LK dermatology.mhmedical.com/content.aspx?aid=1162814686
RD 2024/04/19
AB AT-A-GLANCEUncommon  inflammatory  hypersensitivity  reaction  characterized  by  annular  or  polycyclic  plaques  with  central  clearing  and  peripheral  scale.Favors  the  extremities  and  trunk.Chronic  condition  that  recurs  and  remits.Two  histologic  variants:  superficial  variant  consists  of  spongiosis,  parakeratosis,  hyperkeratosis  or  basal  vacuolar  changes  with  a  perivascular  infiltrate,  and  deep  variant  consists  of  perivascular  lymphocytic  infiltrate  concentrated  in  the  upper  dermis  without  any  epidermal  changes.Treatments  include  topical  corticosteroids,  vitamin  D  analogs,  antibiotics,  and  antifungals.