Fever of unknown origin. An approach for the Internist

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Keywords

Fiebre de origen desconocido
Neoplasia maligna
infecciones
enfermedad autoinmune
adultos Fever of unknown origin
malignant neoplasms
infections
autoimmune disease
adults

How to Cite

Lara-Viáfara, M., ´Álzate-Berrio, C., & Carrera-Patiño, F. (2022). Fever of unknown origin. An approach for the Internist . Interdisciplinary Journal of Epidemiology and Public Health, 5(2), e–9879. https://doi.org/10.18041/2665-427X/ijeph.2.9879

Abstract

Fever of unknown origin (FUO) represents a diagnostic challenge for physicians, since there are multiple differential diagnoses around it and its approach is based on the distinctive clinical features of each pathology. These can be grouped into diseases whose etiology is of infectious origin, autoinflammatory or autoimmune, malignant neoplasms, and even in a large percentage of cases no apparent cause is found. Each of them is associated with characteristic symptoms, clinical signs and laboratory findings, which although not specific when analyzed individually, can be useful to establish a diagnosis and choose the appropriate treatment for the patient. The etiological classifications have remained the same since 1991, however, the initial clinical evaluation combined with current technological advances have allowed for better diagnostic performance and timely treatment. In the following, we will review recent definitions, phase-guided clinical approach, followed by new advances in nuclear medicine and metagenomics, with their respective advantages and limitations.

https://doi.org/10.18041/2665-427X/ijeph.2.9879
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