Perianal streptococcal dermatitis
Background
- Skin infection caused by group A beta-hemolytic strep
- See in ages 6 mos - 10 yrs
Clinical Features
On physical exam[1]:
- Bright red, sharply demarcated, perianal rash
- Spead to the vulva or penis
- Subcutaneous involvement suggestive of cellulitis is normally absent
- Absence of systemic signs of infection
Differential Diagnosis
Neonatal Rashes
- Atopic dermatitis
- Diaper dermatitis
- Erythema toxicum neonatorum
- Neonatal acne
- Psoriasis
- Seborrheic dermatitis
- Tinea capitis
- Impetigo
- Contact dermatitis
- Perianal streptococcal dermatitis
- Milia
- Miliaria
- Mongolian spots
- Omphalitis
- Pustular melanosis
- Sucking blisters
Evaluation
- Rapid strep test
Disposition
- Discharge home
- Close follow up recommended as recurrence can occur in up to 39% of cases[3]
External Links
References
- Brilliant LC. Perianal streptococcal dermatitis. Am Fam Physician. 2000; 61(2):391-393.
- Barzilai A and Choen HA. Isolation of group A streptococci from children with perianal cellulitis and from their siblings. Pediatr Infect Dis J. 1998; 17:358–360.
- Kokx NP, Comstock JA, and Facklam RR. Streptococcal perianal disease in children. Pediatrics. 1987; 80:659–663.
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