13 results
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
• Trauma Non-infectious ... Organ Specific Infection ... • Infectious ... disease Viral Infection ... Enterovirus Other Infection
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
B, hepatitis C infection ... hepatitis B and C infection ... , HIV infection, ... , acute HIV infection ... HIV infection
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
and bacterial infections ... hours • Viral infections ... • Rickettsiae infections ... Pyogenic/focal infection ... endocarditis Non-Infectious
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Unknown Origin (FUO ... Diagnosis • Infection ... tuberculosis, Abscess, Endocarditis ... carcinoma • Non-infectious ... Unknown #Origin #FUO
Travel History - Clues to Infectious Disease Diagnosis in a Traveler 
 • Where did you
History - Clues to Infectious ... → Leptospirosis ... (bartonella), Simian ... Herpesvirus B infection ... InfectiousDiseases #Infections
Q Fever (Coxiella Burnetii) - Acute vs Chronic Diagnosis and Management

Acute:
 - Self-limited flu-like illness
 -
Q Fever (Coxiella ... Osteoarticular infection ... - Endovascular infection ... acute #chronic #infection ... #microbiology
Major Brain Complications of Endocarditis
Abscess:
 • May be macro or micro and occur at site of
Complications of Endocarditis ... or micro and occur ... and recurrent fevers ... • Arise from infective ... reaction to blood & infectious
Duke's Criteria for Infective Endocarditis
Definite IE - Pathologic Criteria:
 • Pathologic lesions - vegetation or intracardiac
Duke's Criteria for Infective ... Endocarditis Definite ... Predisposition • Fever ... Immunologic phenomena • Micro ... evidence of active infection
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... devices (CIED) Non-Infectious ... Hypercoagulable (APLAS) Microbiology ... Culture (-): • Bartonella ... infarction • Infectious
Possible Algorithm for Workup of Fever of Unknown Origin (FUO)
Tier 1 Workup:
 • CBC, comprehensive metabolic
for Workup of Fever ... Unknown Origin (FUO ... ), Bartonella spp ... Additional tests for infection ... #Algorithm #Fever