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Fever in Childhood: Part 2: fever of unknown origin

A K Leung, W L Robson

    Canadian Family Physician Medecin De Famille Canadien
    |January 12, 2011
    PubMed

    Insights

    Fever of unknown origin (FUO) in children is often an atypical presentation of common disorders, primarily infectious diseases. Prompt diagnosis through history, physical exams, and targeted tests leads to a good prognosis with full recovery.

    Area of Science:

    • Pediatrics
    • Infectious Diseases
    • Rheumatology

    Background:

    • Fever of unknown origin (FUO) presents a diagnostic challenge in pediatric patients.
    • Infectious diseases are the most frequent etiology, followed by collagen vascular diseases and malignancies.

    Purpose of the Study:

    • To summarize the common causes, diagnostic approaches, and prognosis of FUO in children.

    Main Methods:

    • Review of existing literature on pediatric FUO.
    • Emphasis on clinical evaluation, including repeated history and physical examinations.
    • Guidance on selecting laboratory tests and diagnostic imaging based on clinical findings.

    Main Results:

    • Most pediatric FUO cases involve common disorders with atypical presentations.
    • Infectious diseases are the leading cause.
    • Diagnostic process relies heavily on thorough clinical assessment.

    Conclusions:

    • Pediatric FUO diagnosis requires a systematic approach integrating clinical evaluation and investigations.
    • Children with FUO generally have a favorable prognosis and achieve complete recovery.

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