II. Pathophysiology

  1. Immune-mediated erythematous rash

III. Signs

  1. Sun sensitive, erythematous rash
  2. Butterfly-shape appearance
  3. Involves both cheeks and variably the bridge of nose

IV. Differential Diagnosis: Miscellaneous

V. Differential Diagnosis: Infection

  1. Facial Erysipelas (Group A Streptococcal Cellulitis)
  2. Facial Staphylococcus AureusCellulitis
  3. Parvovirus B19 infection (slapped cheek appearance)
  4. Dental Abscess extension
  5. Wells’ syndrome (Eosinophilic Cellulitis)

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Related Studies

Ontology: Butterfly rash (C0277942)

Concepts Finding (T033)
SnomedCT 141617003, 164430003, 30704002
Spanish Eritema en alas de mariposa, Eritema malar, eritema en alas de mariposa (hallazgo), eritema en alas de mariposa, eritema malar, rash en alas de mariposa, rash malar, salpullido en alas de mariposa, salpullido malar, sarpullido en alas de mariposa, sarpullido malar
Dutch butterfly rash, vlinderuitslag
German Schmetterlingsexanthem, Wangenexanthem
Japanese 蝶形皮疹, チョウケイヒシン, キョウブヒシン, 頬部皮疹
Czech Lícní exantém, Motýlovitý exantém
Portuguese Erupção malar, Erupção em forma de asas de borboleta
Italian Eritema malare, Eritema a farfalla
French Rash malaire, Rash en ailes de papillon
English butterfly rash, malar rash, malar butterfly rash, Butterfly rash, Malar rash, Butterfly rash (finding)
Hungarian Pillangószárny alakú kiütés, Járomcsont alakú kiütés