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November 1990

A Family Outbreak of Acute Guttate Psoriasis

Author Affiliations

Department of Dermatology Texas Tech University Health Sciences Center Lubbock, TX 79430

514-G E Woodrow Wilson Dr Jackson, MS 39296-5723

Arch Dermatol. 1990;126(11):1523-1524. doi:10.1001/archderm.1990.01670350139034

To the Editor.—  The influence of genetic factors in the expression of psoriasis is widely accepted. The association between acute guttate psoriasis (AGP) and group A β-hemolytic streptococci infection is also well known. We present three cases of AGP occurring in one family in a 2-month period. These cases demonstrate this combination of genetic and environmental influences in psoriasis.

Report of Cases.—  A 4-year-old white girl was seen in May 1989 with a 2-month history of generalized guttate psoriasis. In late February 1989, she received amoxicillin therapy for an upper respiratory infection and impetiginous lesions around her nose. Three weeks later, she developed a generalized eruption typical of guttate psoriasis. Her 26-year-old mother had also developed AGP 2 weeks following culture-proven group A β-hemolytic streptococcal pharyngitis in early January 1989. The child's 48-year-old maternal grandmother (who visited from Colorado in late December 1988 and early January 1989) developed AGP 1

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