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NBME 22 Answers

nbme22/Block 3/Question#48

A 2-year-old boy is brought to the physician ...

Bruton agammaglobulinemia

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submitted by haliburton(74),

no tonsilar tissue is a huge clue here. total lack of Ig which causes recurrent infections after 6mo (maternal IgG is gone). LN and tonsils are minor/non-existent. (FA 2017).