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Secondary cutaneous mucinosis with systemic lupus erythematosus. A case presentation and review of the literature.

A patient had papular and nodular cutaneous deposits of mucin and cutaneous and systemic manifestations of lupus erythematosus (LE). Since many of the mucinous deposits occurred at sites that were clinically free of skin lesions of LE, we considered initially that the patient had both LE and papular mucinosis. However, after a review of the English literature and further study of the patient, it seemed more likely that the papular and nodular deposits of mucin were secondary to LE and not a previously unreported simultaneous occurrence of the two diseases in the same patient. To our knowledge, this is the third case report of a patient with papular and nodular cutaneous mucinosis secondary to LE. In addition to the case report, this article is concerned with a discussion of cutaneous mucinosis in LE and other "collagen vascular" diseases.