Article in Japanese

Simultaneous onset of streptococcal intertrigo in one-month-old healthy twins with infantile eczema

Shigeki ISHII¹⁾, Hiromi SAKAGUCHI¹⁾, Hiroyuki NUNOI²⁾

We report a case of simultaneous onset of streptococcal intertrigo in one-month-old healthy twins. Two days before admission, the first twin developed fever and an erythematous rash that rapidly became shiny bright red with well-defined, slightly raised borders in her neck and axillary regions. The second twin simultaneously showed similar skin lesions, but without fever. Their symptoms improved dramatically with intravenous ampicillin-sulbactum administration. Group A beta-hemolytic streptococcus (GAS) was isolated from skin cultures of their neck on admission, but not from the throat or blood. Four days after admission, both twins improved and were discharged.
With their parent's consent, throat cultures were obtained from all members of their family. The same GAS (B3264 strain) was isolated from their asymptomatic father and 4-year-old brother.
Intertrigo is a common dermatologic disease in neonates or early infants, and secondary cutaneous infections are commonly observed. Streptococcal intertrigo should be suspected in an infant who has fiery-red, well-demarcated, moist dermatitis of the cervical or axillary regions.

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1) Miyazaki City Pediatric Clinic
2) Division of Pediatrics, Miyazaki University Hospital

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Received	July 11, 2013
Accepted	September 11, 2013

25 (4)：421─425,2014