9 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... antibiotics as a cause ... Scedosporium, endemic fungi ... Differential #Diagnosis #InfectiousDiseases
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... Native Valve - Acute ... • HACEK • Culture-negative ... Gram-negative bacilli • Fungi ... Gram-negative bacilli • Fungi
Soil Related Infections - Differential Diagnosis Framework

Mechanism Of Infection:
 • Wound
 • GI: Ingestion, MUD, Contaminated
include: bacteria, fungi ... and paralysis, acute ... • Chlorella Fungi ... Soil-related endemic fungi ... cause primary pulmonary
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... pain, hemoptysis, dyspnea ... • Sputum/Blood cultures ... Prevotella • Fungal ... #pulmonary #differential
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Acute: • S. ... Heart Failure • Dyspnea ... Cerebral > Splenic, pulmonary ... Septic Emboli Cause ... Treat underlying cause
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
: • Acute: S. ... heart failure • Dyspnea ... Cerebral > Splenic, Pulmonary ... Septic emboli cause ... Diagnosis #cardiology #infectiousdiseases
Localized Acute Abdominal Pain(<72 hours) - Differential Diagnostic Algorithm
Look for surgical abdomen
Upper quadrant: R/O cardiac, pulmonary,
Localized Acute ... Differential Diagnostic Algorithm ... : R/O cardiac, pulmonary ... musculoskeletal causes ... genitourinary causes
Blastomycosis Summary

Pathogen: 
 • Dimorphic fungus - Blastomyces dermatitidis or Blastomyces gilchristii.
 • The fungus lives
• The fungus ... The Disease: • Pulmonary ... (91%): Acute / ... Skin tissue 2) Culture ... management #treatment #infectiousdiseases
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
presents with acute ... to 12 weeks for acute ... • Confirmed by culture ... Sinusitis • Brain abscess ... ) #Mycoses #InfectiousDiseases