Detection of anti-type VII collagen antibody in Sjögren's syndrome/lupus erythematosus overlap syndrome with transient bullous systemic lupus erythematosus

K Fujii, W Fujimoto, M Ueda, E Makino, J Arata
British Journal of Dermatology 1998, 139 (2): 302-6
Bullous systemic lupus erythematosus (SLE) is a chronic, widespread, non-scarring, subepidermal blistering eruption associated with autoimmunity to type VII collagen. We describe a patient with Sj ogren's syndrome/lupus erythematosus overlap syndrome who showed transient blistering eruptions over limited skin surface and in oral mucosa. At the time of aggravation, the patient's serum contained IgG autoantibodies that bound to the dermal side of 1 mol/L NaCl-split normal skin, as determined by an indirect immunofluorescence test, and that reacted to type VII collagen, as determined by immunoblotting on dermal extract. Our observations suggest that a chronic, widespread, blistering eruption is not a prerequisite for the diagnosis of bullous SLE, and a mild, transient, blistering eruption could be a manifestation of type I bullous SLE.

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