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1. • • Fever of unknown origin is defined as a clinically documented temperature of 101°F or higher on several occasions, coupled with an unrevealing diagnostic workup. The differential diagnosis is broad but is typically categorized as infection, malignancy, noninfectious inflammatory disease, or miscellaneous.
     www.aafp.org/pubs/afp/issues/2022/0200/p137.html

     Fever of Unknown Origin in Adults | AAFP

2. www.ncbi.nlm.nih.gov › books › NBK532265Fever of Unknown Origin - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov › books › NBK532265

   Aug 14, 2023 · Fever of unknown origin (FUO) was first described by Dr. Petersdorf and Dr. Beesom in 1961. FUO was defined as a temperature of 101 degrees Fahrenheit (38.3 degrees Centigrade) or higher with a minimum duration of three weeks without an established diagnosis after an intensive one-week investigation in the hospital.

   • Author: Ilona Brown, Nancy A. Finnigan
   • Published: 2023/08/14

   • Publish Year: 2021

3. clinicainfectologica2hnc.webs.fcm.unc.edu.ar › files › 2018Fever of Unknown Origin (FUO) Clinical Presentation

   clinicainfectologica2hnc.webs.fcm.unc.edu.ar › files › 2018

   The syndrome of fever of unknown origin (FUO) was defined in 1961 by Petersdorf and Beeson as the following: (1) a temperature greater than 38.3°C (101°F) on several occasions, (2) more than 3 weeks' duration of illness, and (3) failure to reach a diagnosis despite one week of inpatient investigation. [1, 2] However, it is important to allow for...

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5. www.aafp.org › pubs › afpFever of Unknown Origin in Adults | AAFP

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   Fever of unknown origin is defined as a clinically documented temperature of 101°F or higher on several occasions, coupled with an unrevealing diagnostic workup. The differential diagnosis is...

6. emedicine.medscape.com › article › 217675-clinicalFever of Unknown Origin (FUO) Clinical Presentation - Medscape

   emedicine.medscape.com › article › 217675-clinical

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   Fever of unknown origin (FUO) was defined in 1961 by Petersdorf and Beeson as the following: (1) a temperature greater than 38.3°C (101°F) on several occasions, (2) more than 3 weeks' duration...

7. www.merckmanuals.com › fever-of-unknown-origin-fuoFever of Unknown Origin (FUO) - Fever of Unknown Origin (FUO ...

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   Jul 9, 2024 · Fever of unknown origin (FUO) is body temperature ≥ 38.3° C (≥ 101° F) rectally that does not result from transient and self-limited illness, rapidly fatal illness, or disorders with clear-cut localizing symptoms or signs or with abnormalities on common tests such as chest radiograph, urinalysis, or blood cultures.

   • Author: Larry M. Bush

8. accessmedicine.mhmedical.com › contentChapter 17: Fever of Unknown Origin - McGraw Hill Medical

   accessmedicine.mhmedical.com › content

   DEFINITION. Clinicians commonly refer to any febrile illness without an initially obvious etiology as fever of unknown origin (FUO). Most febrile illnesses either resolve before a diagnosis can be made or develop distinguishing characteristics that lead to a diagnosis.

9. People also ask

   What is fever of unknown origin (FUO)?

   • Last Update: August 14, 2023. Fever of unknown origin (FUO) was first described by Dr. Petersdorf and Dr. Beesom in 1961. FUO was defined as a temperature of 101 degrees Fahrenheit (38.3 degrees Centigrade) or higher with a minimum duration of three weeks without an established diagnosis after an intensive one-week investigation in the hospital.

   Fever of Unknown Origin - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov/books/NBK532265/

   See all results for this question

   What are the key features of fever of unknown origin (FUO)?

   • Key features of fever of unknown origin (FUO), also known as pyrexia of unknown origin (PUO), are as follows: • Unexplained fevers are worrisome to patients and clinicians, but most persistent fevers are diagnosed, and often within one week of hospital evaluation or 3 outpatient visits.

   Fever of Unknown Origin (FUO) Clinical Presentation

   clinicainfectologica2hnc.webs.fcm.unc.edu.ar/files/2018/03/Fever-of-Unknown-Origin-FUO-Clinical-Presentation.pdf

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   What is a recurrent fever of unknown origin (FUO)?

   • Recurrent fever of unknown origin (FUO): aseptic meningitis, hepatosplenomegaly, pericarditis and a double quotidian fever due to juvenile rheumatoid arthritis (JRA). [Heart Lung. 2012] Fever of unknown origin (FUO). II. Diagnostic procedures in a prospective multicenter study of 167 patients. The Netherlands FUO Study Group.

   Fever of Unknown Origin - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov/books/NBK532265/

   See all results for this question

   How do you know if you have a fever of unknown origin?

   • The history can provide important clues to fever of unknown origin (FUO) due to zoonoses, malignancies, and inflammatory/immune disorders. In adults with FUO, inquire about symptoms involving all major organ systems and obtain a detailed history of general symptoms (eg, fever, weight loss, night sweats, headaches, rashes).

   Fever of Unknown Origin (FUO) Clinical Presentation - Medscape

   emedicine.medscape.com/article/217675-clinical

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   How many cases of fever of unknown origin are there?

   • Mansueto P, Di Lorenzo G, Rizzo M, Di Rosa S, Vitale G, Rini G, Mansueto S, Affronti M. Fever of unknown origin in a Mediterranean survey from a division of internal medicine: report of 91 cases during a 12-year-period (1991-2002). Intern Emerg Med. 2008 Sep;3(3):219-25. [PubMed]

   Fever of Unknown Origin - StatPearls - NCBI Bookshelf

   www.ncbi.nlm.nih.gov/books/NBK532265/

   See all results for this question

   Are human herpes viruses associated with classic Fever of unknown origin (FUO)?

   • 28. Zhou W, Tan X, Li Y, Tan W. Human herpes viruses are associated with classic fever of unknown origin (FUO) in Beijing patients. PLoS One 2014;9 (7):e101619-e101619.

   Fever of Unknown Origin | New England Journal of Medicine

   www.nejm.org/doi/full/10.1056/NEJMra2111003

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10. www.nejm.org › doi › fullFever of Unknown Origin | New England Journal of Medicine

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    Feb 2, 2022 · In 1961, Petersdorf and Beeson defined fever of unknown origin (FUO) as a temperature of 38.3°C or higher for at least 3 weeks without a diagnosis, despite 1 week of inpatient...