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Medical Definition of Senear-Usher disease
1. An eruption involving sun-exposed skin, especially the face; the lesions are scaling erythematous macules and blebs, combining the clinical features of both lupus erythematosus and pemphigus vulgaris; bullae are subcorneal; probably a variant of pemphigus foliaceus. Synonym: Senear-Usher disease, Senear-Usher syndrome. (05 Mar 2000)