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Atypical lymphocytosis due to infections is classically seen in viral and chronic bacterial infections. A four year old boy with acute streptococcal infection presented at Al-Nahdha Hospital, Muscat, Oman, with follicular tonsillitis and bilateral cervical lymphadenitis. The blood film showed 33% atypical lymphocytes. Serologically, immunoglobulin M (IgM) antibodies were positive for cytomegalovirus, herpes simplex virus, and Epstein Barr virus, but the patient responded dramatically to antibiotics.


Atypical lymphocytes Acute streptococcal infection Lymphnode Case report Oman.

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Venugopal, S., George, J., & Al-Harthy, S. S. (2008). An Unusual Case of Atypical Lymphocytosis. Sultan Qaboos University Medical Journal, 8(3), 353–355. Retrieved from

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