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Tuesday, February 25, 2014

Streptococcal infections Scarlet fever


Clinical manifestations
Early, the tongue is usually coated and the papillae are swollen.
After several days the white coat desquamates, and the reddened papillae are prominent, giving the tongue a strawberry appearance.
The rash:
- Appears after 12-48 hours
- The erythematous exanthem is red, punctate or finely papular, and blanches on pressure, appears initially in the axillae, groin, and neck, but  within 24 hours it becomes generalized.
Circumoral pallor:
The forehead and cheeks appears flushed and the area around the mouth is pale.

Desquamation begins on the face towards the end of the first week and proceeds over the trunk and finally to the hands and feet, it may continue for as long as 6 weeks.

Complications of streptococcal infection
Early: sinusitis, otitis media, mastoiditis, cervical adenitis, retropharyngeal or parapharyngeal abscess, or bronchopneumonia. Hematogenous dissemination of streptococci may cause meningitis, osteomyelitis, or septic arthritis.
Late: rheumatic fever and acute post-streptococcal glomerulonephritis.
Treatment of streptococcal infection
The goal of therapy is to decrease symptoms and prevent suppurative, and non-suppurative complications.
Penicillin is the drug of choice in a dose of 125-250 mg/dose 3 times a day for 10 days. A single IM injection of a long acting benzathine penicillin (600,000 U for children <27 kg and 1,200,000 U for children≥27 kg) may be more effective for treatment or prevention of relapse.
· If the patient is allergic to penicillin, he can be treated with erythromycin (40 mg/kg/24 hr) or lincomycin (40mg/kg/24 hr).
 see the picture
Coated tongue
Coated tongue

strawberry  tongue

 strawberry  tongue
 erythematous exanthem
 erythematous exanthem



 Circumoral pallor
 Circumoral pallor

 Desquamation of the skin

 Desquamation of the skin

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