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Published on: December 15, 2011
Guttate psoriasis triggered by perianal streptococcal dermatitis in a four-year-old boy
1Department of Dermatology and Allergology, Hannover Medical University, Hannover, Germany. herbst_ra@gmx.de
Abstract:
Perianal streptococcal dermatitis (PSD) is a superficial bacterial infection usually with group A beta-hemolytic streptococci. PSD is often misdiagnosed for long periods and patients are subjected to treatments for a variety of differential diagnoses without success. We report a 4-year-old boy with PSD who presented to our clinic with guttate psoriasis for 2 reasons: first, to make dermatologists aware of PSD and second, to emphasize the necessity to examine patients, particularly pediatric patients, with guttate psoriasis very thoroughly and swab both the pharynx and perianal and/or perigenital areas even when they are, or seem to be, asymptomatic for bacterial infections. Once PSD has been diagnosed, systemic antibiotic therapy with penicillin, erythromycin, roxithromycin, or azithromycin (probably augmented by topical mupirocin ointment) should be the treatment of choice. Therapy should be monitored by posttreatment perianal and throat swabs as well as a urine analysis to monitor for poststreptococcal glomerulonephritis.
Insights
Perianal streptococcal dermatitis (PSD) is a common bacterial skin infection often misdiagnosed. Early diagnosis and appropriate antibiotic treatment are crucial for effective management and preventing complications.
Area of Science:
- Dermatology
- Pediatrics
- Infectious Diseases
Background:
- Perianal streptococcal dermatitis (PSD) is a superficial bacterial infection caused by group A beta-hemolytic streptococci.
- PSD is frequently misdiagnosed, leading to prolonged, unsuccessful treatments for other conditions.
Observation:
- A case report of a 4-year-old boy presenting with PSD mimicking guttate psoriasis is detailed.
- The importance of thorough examination, including pharyngeal and perianal/perigenital swabbing, in pediatric patients with guttate psoriasis is highlighted.
Findings:
- Prompt diagnosis of PSD is essential for appropriate management.
- Systemic antibiotic therapy, such as penicillin or azithromycin, is the recommended treatment for PSD.
- Topical mupirocin may be an effective adjunctive therapy.
Implications:
- Increased awareness among dermatologists about PSD can improve diagnostic accuracy.
- Comprehensive diagnostic approaches, including microbiological sampling, are necessary for pediatric skin conditions.
- Monitoring for poststreptococcal glomerulonephritis post-treatment is crucial.
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