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Recurrent toxin-mediated perineal erythema: eleven pediatric cases
Annalisa Patrizi1, Beatrice Raone, Francesco Savoia
1Clinica Dermatologica Via Massarenti 1, 40138 Bologna, Italy. annalisa.patrizi@unibo.it
Insights
Recurrent toxin-mediated perineal erythema, a superantigen-mediated rash, is reported in children, not just adults. This study details its presentation and distinguishes it from Kawasaki disease in pediatric patients.
Area of Science:
- Pediatric Dermatology
- Infectious Diseases
- Toxicology
Background:
- Recurrent toxin-mediated perineal erythema (RTPE) is a rare skin condition.
- Previously, RTPE was thought to affect only young adults.
- It is caused by superantigens produced by staphylococci and streptococci.
Purpose of the Study:
- To describe cases of RTPE in children.
- To differentiate RTPE from Kawasaki disease in pediatric patients.
Main Methods:
- Retrospective case series of 11 children with RTPE.
- Clinical presentation, physical examination findings, and microbiological cultures were analyzed.
- Comparison with clinical features of Kawasaki disease.
Main Results:
- Eleven children (7 male, 4 female) presented with salmon-colored, desquamating perineal erythema.
- Associated symptoms included fever, hand-foot erythema, strawberry tongue, and impetigo.
- Group A beta-hemolytic streptococcus was frequently isolated.
- Three patients experienced rash recurrence.
Conclusions:
- Recurrent toxin-mediated perineal erythema occurs in childhood.
- Clinical features can overlap with Kawasaki disease, necessitating careful diagnosis.
- Prompt antimicrobial therapy is recommended.
Background:
Recurrent toxin-mediated perineal erythema is a cutaneous disease mediated by superantigens made by staphylococci and streptococci, which, to our knowledge, has only been reported in young adults. We describe recurrent toxin-mediated perineal erythema in 11 children and outline the differences between recurrent toxin-mediated perineal erythema and Kawasaki disease in this age range.
Observations:
Eleven children (7 male and 4 female) presented with the sudden appearance of asymptomatic erythema, which was salmonlike in color and rapidly desquamating, involving the perineum in 10 patients and extending to the perianal area in 1 patient. At the onset of the rash, all patients were in good health, although 9 had mild fever for 1 to 2 days before its appearance. Physical examination also revealed an erythema of the hands and feet in 4 patients and strawberry tongue in 7. Two patients had a facial impetigo, and another showed a perianal streptococcal dermatitis. A group A beta-hemolytic streptococcus was isolated from the throat in 10 cases and from a perianal culture in 1 case. In 8 cases, resolution was spontaneous, but all patients were treated with systemic antimicrobial therapy for 10 days. Three patients had a personal history of cutaneous rashes on the perineal area during the last years before consultation. Rash recurrence was observed in 3 of the 11 patients at the follow-up examination. Conclusion Recurrent toxin-mediated perineal erythema can be observed not only in young adults but also in childhood.
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