21 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Culture Negative Abscess ... negative culture Brain ... Mycobacteria - Fungal ... Culture #Negative #Abscess ... Differential #Diagnosis #InfectiousDiseases
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Abscess Pathophysiology ... Lung abscess ... Lung Abscess - Clinical ... Prevotella • Fungal
Rigors And Bacteremia - Overview

• Rigors are a response to the release of cytokines and prostaglandins
PATHOPHYSIOLOGY: ... Double-stranded RNA • Fungi ... Mannan and glucan components ... Transport to brain ... #InfectiousDiseases
Fever - Pyrogen Pathophysiology

EXOGENOUS PYROGEN
 • Bacteria: Lipopolysaccharide components, peptidoglycans and muramyl peptide derivatives, Toxins
 •
Fever - Pyrogen Pathophysiology ... Lipopolysaccharide components ... stranded RNA • Fungi ... Mannan and glucan components ... - Transport to brain
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... lesions • 80% with lung ... CNS Lymphoma (CD4 ... Syphilis • Pyogenic Abscess ... RingEnhancing #Lesions #Brain
Echinococcus Life Cycle
1) Adult in small intestine eggs
2) Embryonated egg in feces
3) Oncosphere hatches; penetrates intestinal
commonly liver and lung ... LifeCycle #diagnosis #pathophysiology ... #infectiousdiseases ... #cdc #parasite
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
- M. abscessus ... chelonae • M abscessus ... fortuitum, M. abscessus ... Advanced HIV (CD4 ... differential #diagnosis #infectiousdiseases
C.diff - Clostridioides Difficile Infection (CDI) - Diagnosis and Management - GrepMed Handbook

Clinical Presentation + Progression:
Difficile Infection (CDI ... Perforation) Pathophysiology ... equivocal • CT A/P: Assess ... IDSA 2021 CDI ... management #treatment #infectiousdiseases
Intestinal Hookworm Life Cycle
1) Eggs in feces
2) Rhabditiform larva hatches
3) Development to filariform larva in environment
4)
circulation in the lungs ... lifecycle #diagnosis #pathophysiology ... #infectiousdiseases ... #cdc #parasite
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Disease by CD4 ... Count: Any CD4 ... Pseudomonas FUNGAL ... differential #diagnosis #infectiousdiseases