TY - CHAP M1 - Book, Section TI - Erythema Annulare Centrifugum and Other Figurate Erythemas 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. PY - 2019 T2 - Fitzpatrick's Dermatology, 9e 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. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/11 UR - dermatology.mhmedical.com/content.aspx?aid=1161330406 ER -