TABLE 2

Categorization of Pediatric FUO Etiologies

Infectious (n = 42)Autoimmune (n = 28)Oncologic (n = 18)Other or Unknown (n = 4/10)
Acute bacterial sinusitisAutoimmune disorder of unknown etiologyAcute lymphoid leukemiaDrug fever
Aseptic meningitisAtypical KawasakiHepatocellular carcinomaAutonomic instability
Bartonella meningitisBechet’s diseaseHemophagocytic lymphohistiocytosis
Bartonella osteomyelitisBechet’s disease with Hughes-Stovin syndromeMacrophage activating syndrome
DiskitisCrohn’s diseaseUnknown
C difficile colitisDermatomyositis
Candida albicans infectionErythema multiforme
CytomegalovirusJuvenile idiopathic arthritis
Epstein-Barr virus infectionKawasaki disease
EmpyemaPeriodic fever syndrome (unspecified)
EndocarditisVasculitis of unknown etiology
Enterovirus infectionSystemic lupus erythematosus
Ehrlichiosis meningitis
Gluteal abscess
Fungemia
Herpes stomatitis
Infected brachial cleft cyst
Intraabdominal abscess
Meningitis
Metapneumovirus infection
Parapneumonic effusions
Pneumonia
Pyelophlebitis
Septic joint (knee)
Staphylococcus infection
Tracheitis
Viral illness