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Lupus Erythematosus and Polymorphous Light EruptionDifferentiation by Histochemical Procedures
Giles Panet-Raymond, MD;
Waine C. Johnson, MD
Arch Dermatol. 1973;108(6):785-787.
Abstract
Biopsy specimens from patients with systemic lupus erythematosus (SLE), discoid lupus erythematosus (DLE), and polymorphous light eruption (PMLE) were studied for the presence of ground substance changes and for thickening of the basement membrane. The criteria used to identify and classify these diseases are given. Our findings showed substantial and equal increase of hyaluronic acid in the middle and lower corium in specimens from patients with both SLE and DLE but not in those with PMLE. Thickening of the basement membrane was found in a much greater proportion in patients with lupus erythematosus (LE) than in patients with PMLE. It is concluded that histochemical studies are of value for differentiating LE from PMLE.
Author Affiliations
Philadelphia
From the departments of dermatology (Drs. Panet-Raymond and Johnson) and pathology (Dr. Johnson), Temple University School of Medicine, and the Skin and Cancer Hospital of Philadelphia, Philadelphia. Dr. Panet-Raymond is now at Saint-Luc Hospital, Montreal.
Footnotes
Accepted for publication July 10, 1973.
Reprint requests to Skin and Cancer Hospital, 3322 N Broad St, Philadelphia 19140 (Dr. Johnson).
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