Fever of unknown origin causes: Difference between revisions

Jump to navigation Jump to search
← Older editNewer edit →
VisualWikitext
No edit summary
Line 12: Line 12:
Etiology is different for different categories of FUO:
Etiology is different for different categories of FUO:


=== Classic FUO ===
===Classic FUO===


# Malignancies such as Hodgkin and non-Hodgkin lymphoma, myeloproliferative disorders, malignancy of colon and liver.
#Malignancies such as Hodgkin and non-Hodgkin lymphoma, myeloproliferative disorders, malignancy of colon and liver.
# Infections such as intrabdominal and pelvic abscesses, inflammation of the endocardium, tuberculosis, cat scratch disease, CMV and EBV infections.
#Infections such as intrabdominal and pelvic abscesses, inflammation of the endocardium, tuberculosis, cat scratch disease, CMV and EBV infections.
# Inflammatory causes such as autoimmune diseases (systemic lupus erythematosus, Rheumatoid arthritis) and polymyalgia rheumatica.  
#Inflammatory causes such as autoimmune diseases (systemic lupus erythematosus, Rheumatoid arthritis) and polymyalgia rheumatica.<ref name="HayakawaRamasamy2012">{{cite journal|last1=Hayakawa|first1=Kayoko|last2=Ramasamy|first2=Balaji|last3=Chandrasekar|first3=Pranatharthi H.|title=Fever of Unknown Origin: An Evidence-Based Review|journal=The American Journal of the Medical Sciences|volume=344|issue=4|year=2012|pages=307–316|issn=00029629|doi=10.1097/MAJ.0b013e31824ae504}}</ref>


=== Neutropenic FUO ===
===Neutropenic FUO===
These are mostly caused by bacterial, fungal and viral infection because of the decreased neutrophil count.
These are mostly caused by bacterial, fungal and viral infection because of the decreased neutrophil count.<ref name="HayakawaRamasamy20122">{{cite journal|last1=Hayakawa|first1=Kayoko|last2=Ramasamy|first2=Balaji|last3=Chandrasekar|first3=Pranatharthi H.|title=Fever of Unknown Origin: An Evidence-Based Review|journal=The American Journal of the Medical Sciences|volume=344|issue=4|year=2012|pages=307–316|issn=00029629|doi=10.1097/MAJ.0b013e31824ae504}}</ref>


=== HIV associated FUO ===
===HIV associated FUO===
This may due to acute infection from HIV itself earlier or later due to opportunistic bacterial, fungal and viral infections such as mycobacteria, toxoplasma etc.
This may due to acute infection from HIV itself earlier or later due to opportunistic bacterial, fungal and viral infections such as mycobacteria, toxoplasma etc.<ref name="HayakawaRamasamy20123">{{cite journal|last1=Hayakawa|first1=Kayoko|last2=Ramasamy|first2=Balaji|last3=Chandrasekar|first3=Pranatharthi H.|title=Fever of Unknown Origin: An Evidence-Based Review|journal=The American Journal of the Medical Sciences|volume=344|issue=4|year=2012|pages=307–316|issn=00029629|doi=10.1097/MAJ.0b013e31824ae504}}</ref>


=== Nosocomial FUO ===
===Nosocomial FUO===
Causes of nosocomial FUO are related to hospital setting such as drugs, infections acquired during hospitalization and complications that occur during and after surgery.
Causes of nosocomial FUO are related to hospital setting such as drugs, infections acquired during hospitalization and complications that occur during and after surgery.<ref name="HayakawaRamasamy20124">{{cite journal|last1=Hayakawa|first1=Kayoko|last2=Ramasamy|first2=Balaji|last3=Chandrasekar|first3=Pranatharthi H.|title=Fever of Unknown Origin: An Evidence-Based Review|journal=The American Journal of the Medical Sciences|volume=344|issue=4|year=2012|pages=307–316|issn=00029629|doi=10.1097/MAJ.0b013e31824ae504}}</ref>




==== References ====
====References====
{{Reflist|2}}
{{Reflist|2}}


[[Category:Ailments of unknown etiology]]
[[Category:Ailments of unknown etiology]]

Revision as of 22:46, 21 January 2021

Resident
Survival
Guide

Fever of unknown origin Microchapters

Home

Patient Information

Overview

Historical perspective

Pathophysiology

Causes

Differentiating Fever of unknown origin from other Diseases

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

Diagnostic Criteria

Diagnostic study of choice

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

X-ray

Echocardiography and ultrasound

CT scan

MRI

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Fever of unknown origin causes On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Fever of unknown origin causes

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Fever of unknown origin causes

CDC on Fever of unknown origin causes

Fever of unknown origin causes in the news

Blogs on Fever of unknown origin causes

Directions to Hospitals Treating Fever of unknown origin

Risk calculators and risk factors for Fever of unknown origin causes

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Naresh Mullaguri, M.B.B.S. [2]

Synonyms and keywords: febris continua e causa ignota; febris e causa ignota; febris E.C.I.; FUO; PUO; pyrexia of unknown origin

Causes

Etiology is different for different categories of FUO:

Classic FUO

  1. Malignancies such as Hodgkin and non-Hodgkin lymphoma, myeloproliferative disorders, malignancy of colon and liver.
  2. Infections such as intrabdominal and pelvic abscesses, inflammation of the endocardium, tuberculosis, cat scratch disease, CMV and EBV infections.
  3. Inflammatory causes such as autoimmune diseases (systemic lupus erythematosus, Rheumatoid arthritis) and polymyalgia rheumatica.[1]

Neutropenic FUO

These are mostly caused by bacterial, fungal and viral infection because of the decreased neutrophil count.[2]

HIV associated FUO

This may due to acute infection from HIV itself earlier or later due to opportunistic bacterial, fungal and viral infections such as mycobacteria, toxoplasma etc.[3]

Nosocomial FUO

Causes of nosocomial FUO are related to hospital setting such as drugs, infections acquired during hospitalization and complications that occur during and after surgery.[4]


References

  1. ↑ Hayakawa, Kayoko; Ramasamy, Balaji; Chandrasekar, Pranatharthi H. (2012). "Fever of Unknown Origin: An Evidence-Based Review". The American Journal of the Medical Sciences. 344 (4): 307–316. doi:10.1097/MAJ.0b013e31824ae504. ISSN 0002-9629.
  2. ↑ Hayakawa, Kayoko; Ramasamy, Balaji; Chandrasekar, Pranatharthi H. (2012). "Fever of Unknown Origin: An Evidence-Based Review". The American Journal of the Medical Sciences. 344 (4): 307–316. doi:10.1097/MAJ.0b013e31824ae504. ISSN 0002-9629.
  3. ↑ Hayakawa, Kayoko; Ramasamy, Balaji; Chandrasekar, Pranatharthi H. (2012). "Fever of Unknown Origin: An Evidence-Based Review". The American Journal of the Medical Sciences. 344 (4): 307–316. doi:10.1097/MAJ.0b013e31824ae504. ISSN 0002-9629.
  4. ↑ Hayakawa, Kayoko; Ramasamy, Balaji; Chandrasekar, Pranatharthi H. (2012). "Fever of Unknown Origin: An Evidence-Based Review". The American Journal of the Medical Sciences. 344 (4): 307–316. doi:10.1097/MAJ.0b013e31824ae504. ISSN 0002-9629.
Retrieved from "https://www.wikidoc.org/index.php?title=Fever_of_unknown_origin_causes&oldid=1684669"