Possible causes of pyrexia of unknown origin(PUO)..

Shared by vikalp jain(NGMCian)...

"IMAGINE"
INFECTIONS:-Bacterial:bacillar​y endocarditis and septicemia,collection of pus(subphrenic,intrahepatic,et​c)
Viral:hep b

protozoal:malaria,amoeba,spiro​chaetes
specific: TB,typhoid..
MALIGNANCY:-kidney nd liver,pancreas,lymphoma(hodgki​n nd non hodgkin)..
AUTOIMMUNE DZS: SLE , PAN, rhumatoid arthritis..
GRANULOMAS: sarcoid,crohn dz...
IATROGENIC: Drug fever
NURSES,Doctors and all paramedical : factitious fever
ETC: remeber that the cause is more often a rare manifestation of a common dz den a common manifestation of rare dz