Fever of Unexplained Origin: Report on 100 Cases

Key Points

• Characterize the etiologic spectrum, clinical presentations, and diagnostic evaluations in patients presenting with fever of unexplained origin.
• Case series evaluating 100 cases with fever of unexplained origin (N=100).
• Conducted at the Department of Internal Medicine, Yale University School of Medicine.
• Delineates the diagnostic categories and underlying etiologies identified across 100 clinical cases.
• Qualitatively characterizes key clinical patterns and investigative outcomes associated with prolonged unexplained pyrexia.