Fever of Unknown Origin/ Pyrexia of Unknown Origin

Fever of Unknown Origin/ Pyrexia of Unknown Origin

Last Reviewed : 12/25/2020
Fever of Unknown Origin/ Pyrexia of Unknown Origin

A fever of unknown origin is a body temperature that reaches 101°F (38.3°C) on and off for at least 3 weeks with uncertain diagnosis after a number of obligatory tests. In general, infection accounts for approximately one-fourth of cases of FUO, followed by neoplasm and non infectious inflammatory diseases. No diagnosis is reached in up to 50% of cases. Scintigraphic methods, such as (67)Ga-citrate, labeled leukocytes, and (18)F-fluorodeoxyglucose (FDG) positron emission tomography (PET), are often used in the diagnosis of FUO.


We researched this topic for you and found the following best online resources. They are categorized into basic, advanced, and research level based on the extent of information you need. You will be taken to the respective websites by pressing on the links below.

Basic Information

http://emedicine.medscape.com/article/217675-overview. Medscape, fever of unknown origin

http://patient.info/in/doctor/pyrexia-of-unknown-origin. Patient, pyrexia of unknown origin

http://www.merckmanuals.com/professional/infectious-diseases/biology-of-infectious-disease/fever-of-unknown-origin-fuo. Merck manuals, fever of unknown origin (fuo)

http://www.healthline.com/health/fever-of-unknown-origin. Health line, fever of unknown origin

http://www.medicinenet.com/script/main/art.asp?articlekey=53595. Medicine net, unexplained fever...a difficult diagnosis

Advanced Information

http://www.aafp.org/afp/2003/1201/p2223.html. American family physician, approach to the adult patient with fever of unknown origin

http://www.croh-online.com/article/s1040-8428(16)30039-7/fulltext. Croh, fever of unknown origin in cancer patients


http://jamanetwork.com/journals/jamainternalmedicine/fullarticle/215227. The jama network, a comprehensive evidence-based approach to fever of unknown origin

http://jnm.snmjournals.org/content/48/1/35.full. Journal of clincal medicine, 18f-fdg pet and pet/ct in fever of unknown origin

http://www.jabfm.org/content/25/3/390.long. Jabfm, strongyloides as a cause of fever of unknown origin, doi:10.3122/jabfm.2012.03.110101

https://www.ncbi.nlm.nih.gov/pubmed/16543040. Pubmed, fever of unknown origin: temporal arteritis presenting with persistent cough and elevated serum ferritin levels, doi:10.1016/j.hrtlng.2005.03.010

https://www.hindawi.com/journals/crii/2015/314217/. Fever of unknown origin: an unusual presentation of kikuchi-fujimoto disease, http://dx.doi.org/10.1155/2015/314217

https://www.ncbi.nlm.nih.gov/pubmed/26119676. Pubmed, fever of unknown origin in returning travellers.

Https://www.ncbi.nlm.nih.gov/pubmed/26964380. Pubmed, fever of unknown origin: most frequent causes in adult patients

https://www.ncbi.nlm.nih.gov/pubmed/11354697. Pubmed, management of children with prolonged fever of unknown origin and difficulties in the management of fever of unknown origin in children in developing countries.

Https://www.ncbi.nlm.nih.gov/pmc/articles/pmc3249985/. Pubmed, etiological study of fever of unknown origin in patients admitted to medicine ward of a teaching hospital of eastern india

https://www.ncbi.nlm.nih.gov/pmc/articles/pmc2931780/. Pubmed, fever of unknown origin: 98 cases from saudi arabia, doi: 10.4103/0256-4947.65259

Related Topics

http://www.the-rheumatologist.org/article/diagnosis-can-elusive-fever-unknown-origin/. Diagnosis can be elusive for fever of unknown origin

http://www.jacionline.org/article/s0091-6749(06)02489-4/fulltext. Fever of unknown origin (fuo) and anemia as sole presenting features of sarcoid

Other Articles

http://www.icd10data.com/icd10cm/codes/r00-r99/r50-r69/r50-/r50.9. Icd10 data

https://www.verywell.com/fever-as-a-cancer-symptom-2252420. Fever as a cancer symptom


https://www.youtube.com/watch?v=uwihajchdjm. Youtube, fever of unknown origin (fuo)

https://www.youtube.com/watch?v=fjx3aw3jvy8. Youtube, fever of unknown origin

https://www.youtube.com/watch?v=_gkndlvwb54. Youtube, the help video guide to: fever of unknown origin

https://www.youtube.com/watch?v=1mabhncwwyw. Youtube, fever of unknown origin ii bulletpoints

https://www.youtube.com/watch?v=5rdwftukqmu. Youtube, usmle shortcuts- fuo and neutropenic fever

https://www.youtube.com/watch?v=b17gtdv92ia. Youtube, pyrexia of unknown origin

Presentation/Quiz/News Paper

http://www.slideshare.net/drnooruddin/pyrexia-of-unknown-origin-puo. Slideshare, pyrexia of unknown origin (puo)

http://www.slideshare.net/singaram_paed/pyrexia-of-unknown-origin-14869069. Slideshare, pyrexia of unknown origin

https://prezi.com/l5ppcosyairn/copy-of-fever-of-unknown-origin-fuo/. Prezi, fever of unknown origin (fuo)

https://prezi.com/u5uhnrcn2epe/copy-of-fever-of-unknown-origin/. Prezi, fever of unknown origin

http://www.powershow.com/view/3b815a-mtk2n/fever_of_unknown_origin_powerpoint_ppt_presentation. Ppt, fever of unknown origin

https://prezi.com/5syinkeyuewl/copy-of-fever-of-unknown-origin/. Prezi, fever of unknown origin

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