A 5-year-old previously healthy boy was referred to the Pedi- atric Infectious DiseaseClinic with a two-month history of pro- gressive swelling on the upperchest and right 5th metacarpal bone. There was no reported weight loss, fever, cough, night sweats, or pain at the sites of swelling, although parents noted that the child was constantly tired and had reduced appetite. Prior treatment with amoxicillin-clavulanate by his pediatrician had not resulted in any improvement.
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