title: Pyrexia of unknown origin: a prospective study of 100 cases.
abstract: OBJECTIVE
  There are few studies on pyrexia of unknown origin (PUO) from India. The present study was planned to elucidate the causes of in PUO Eastern India and to define the changing patterns of PUO, if any.
  
  
  METHODS
  Prospective case series.
  
  
  METHODS
  One hundred patients meeting the classic criteria of pyrexia of unknown origin.
  
  
  METHODS
  The final diagnosis established at discharge or during follow up.
  
  
  RESULTS
  Infections, especially tuberculosis was the most dominant cause (53%), followed by neoplasms (17%), and collagen vascular disorders (11%), Miscellaneous causes were responsible in 5% cases and in 14% the cause of fever remained undiagnosed.
  
  
  CONCLUSIONS
  It is concluded that infections remain the most important cause of PUO in India, confirming the trends found earlier in other studies. The incidence of neoplasms was much higher compared to other studies from India.
authors.affiliation: Department of Medicine, Institute of Post Graduate Medical Education and Research and SSKM Hospitals, Calcutta, India. mac@cal.vsnl.net.in
authors.forename: D
authors.initials: D
authors.lastname: Kejariwal
authors.forename: N
authors.initials: N
authors.lastname: Sarkar
authors.forename: S K
authors.initials: SK
authors.lastname: Chakraborti
authors.forename: V
authors.initials: V
authors.lastname: Agarwal
authors.forename: S
authors.initials: S
authors.lastname: Roy
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D005335:Fever of Unknown Origin / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D007194:India / Q000453:epidemiology; D007239:Infections / Q000150:complications; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000150:complications; D011446:Prospective Studies