Causes of Fever of Unknown Origin (FUO) - Differential ...
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Description

Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm

Neoplasm:

• NHL

• Hodgkin's lymphoma

• Leukemia

• Solid tumors

Autoimmune:

• SLE

• Polyarteritis nodosum

• Giant cell arteritis

• Sarcoidosis

Other:

• Drug fever

• Factitious fever

• Trauma Non-infectious hepatitis

• Recurrent PE

Bacterial - Organ Specific Infection

 • Infectious endocarditis

 • Osteomyelitis

 • Occult abscess

 • Sinusitis

 • Cholangitis

 • UTI

 • Meningitis

Bacterial - Non-organ specific

 • Brucellosis

 • Q-fever

 • Salmonella

 • Yersinia

 • Tuleremia

 • Septic Phlebitis

 • Rheumatic fever

 • Lyme disease

 • Whipple's disease

Viral Infection:

 • HIV

 • EBV

 • CMV

 • Viral hepatitis

 • Enterovirus

Other Infection:

 • Fungal

 • Protozoa (eg. malaria)

 • other parasites



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