Last updated on: July 12th, 2022

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You’re looking at an interactive case study from Prognosis: Your Diagnosis (one of four distinct learning formats available in Clinical Odyssey). Try it out, and have fun improving your clinical skills.



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A 4-year-old boy presents with a 3-month history of slurring of speech and worsening unsteadiness while walking. His medical history is significant for recurrent respiratory tract infections for several years. His sister died of overwhelming sepsis at 13 years of age, after a similar illness with recurrent respiratory infections and developmental regression. His parents are apparently normal. His birth history is unremarkable. All immunizations are up to date.

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