50 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... antibiotics as a cause ... Dracunculiasis - Non-Infectious ... Blastomycosis - Non-Infectious ... Differential #Diagnosis #InfectiousDiseases
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
most likely to cause ... pulmonary infection ... It can also cause ... Reported cases associated ... #differential #infectiousdiseases
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Transplant Infections ... Staphylococci (skin), Gram-negative ... #Transplant #Infections ... differential #diagnosis #causes ... #infectiousdiseases
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
vs Noninfective Causes ... disease • Systemic infection ... bacilli • Fungi ... bacilli • Fungi ... #Noninfective #Causes
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... Infectious: Legionella ... spotted fever, Non-infectious ... #bradycardia #Causes ... differential #diagnosis #infectiousdiseases
Invasive Aspergillus (IA) - Diagnosis and Management
Aspergillus is ubiquitous in nature. Most invasive infections are caused
are caused by members ... presentations: • Pulmonary ... considered in certain cases ... Management #treatment #fungal ... #infectiousdiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... Tropheryma whipplei, Fungi ... #culture #negative ... #Endocarditis #InfectiousDiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... cultures remain negative ... fastidious bacteria or fungi ... but important causes ... differential #workup #infectiousdiseases
Causes of Hemoptysis - Differential Diagnosis Algorithm
Massive Hemoptysis (>I00 mL in 24 hours)
 • Malignancy
 •
Causes of Hemoptysis ... Vasculitis Infection ... Tuberculosis • Fungal ... Diagnosis #Algorithm #Causes ... #Pulmonary #Massive
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... vascular - pulmonary ... embolus I = infection ... - pulmonary abscess ... (TB, fungal, staph