A Case of Guttate Psoriasis Associated with Perianal Streptococcal Dermatitis.

Guttate psoriasis triggered by perianal streptococcal infection

“…In one case, a group B streptococcus, Streptococcus agalactiae , was found . In a number of cases ( n = 9) a pharyngeal swab was also performed . but in many cases, as in our case, no pharyngeal swab was taken because no throat symptoms were present, although this would have been desirable to check whether the development of GP was triggered by a (subclinical) pharynx streptococci infection.…”

“…10 In a number of cases (n = 9) a pharyngeal swab was also performed. [4][5][6][7][8]10 but in many cases, as in our case, no pharyngeal swab was taken because no throat symptoms were present, although this would have been desirable to check whether the development of GP was triggered by a (subclinical) pharynx streptococci infection. Patrizi et al also found group A b-haemolytic streptococci in the pharyngeal swab, thus it was unclear whether an association between the perianal infection and the GP existed.…”

“…We found 9 case reports, comprising a total of 15 patients, of which 9 were male. Age varied between 1 and 60 years (median 6.0 years, interquartile range 4.0–12.0 years).…”