The malar rash of lupus is red or purplish and mildly scaly. Characteristically, it has the shape of a butterfly and involves the bridge of the nose. Notably, the rash spares the naso-labial folds of the face, which contributes to its characteristic appearance.
A malar rash is present in approximately 46-65% of lupus sufferers and varies between different populations.[1][2][3]
There are numerous other conditions which can cause rashes with a similar appearance. Where lupus is suspected further medical tests (usually an ANA) and a detailed history are necessary to differentiate it from other conditions.
Trivia
Pop singer Seal has a malar rash on his face due to lupus.
References
^ Houman M, Smiti-Khanfir M, Ben Ghorbell I, Miled M (2004). "Systemic lupus erythematosus in Tunisia: demographic and clinical analysis of 100 patients". Lupus13 (3): 204–11. PMID 15119551.
^ Houman M, Smiti-Khanfir M, Ben Ghorbell I, Miled M (2004). "Systemic lupus erythematosus in Tunisia: demographic and clinical analysis of 100 patients". Lupus13 (3): 204–11. PMID 15119551.
^ Vilá L, Alarcón G, McGwin G, Friedman A, Baethge B, Bastian H, Fessler B, Reveille J (2004). "Early clinical manifestations, disease activity and damage of systemic lupus erythematosus among two distinct U.S. Hispanic subpopulations". Rheumatology (Oxford)43 (3): 358–63. doi:10.1093/rheumatology/keh048. PMID 14623949.
