15 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
- Differential Diagnosis ... negative culture Brain ... endemic fungi - Parasitic ... #Differential #Diagnosis ... #InfectiousDiseases
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... Chorioretinitis • Diagnosis ... • Nocardia • Parasitic ... RingEnhancing #Lesions #Brain ... #differential #diagnosis
Balamuthia vs Acanthamoeba vs Naegleria - Comparison
Exposure - Host - CNS disease - CNS spread -
Ameba in CSF - Brain ... - Pathology - Diagnosis ... Naegleria #Comparison #Table ... #InfectiousDiseases ... #diagnosis
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
: ß-blockers, CNS ... #differential #diagnosis ... #infectiousdiseases ... #table #NonInfectious
Rigors And Bacteremia - Overview

• Rigors are a response to the release of cytokines and prostaglandins
Transport to brain ... transport across blood-brain ... circumventricular organs CNS ... Pathophysiology #InfectiousDiseases ... #Diagnosis
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
, wt loss; CV, CNS ... Variable) - Fungal, parasites ... #differential #diagnosis ... #comparison #table
Cysticercosis - Taenia solium Life Cycle
1) Eggs or gravid proglottids in feces and passed into environment.
2)
subcutaneous tissues, brain ... TaeniaSolium #LifeCycle #diagnosis ... pathophysiology #infectiousdiseases ... #cdc #parasite
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Concurrent Brain ... Coccidioides • Parasite ... febrilepodcast #Brain ... #Differential #Diagnosis ... #causes #infectiousdiseases
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Concurrent Brain ... Coccidioides • Parasite ... febrilepodcast #Brain ... #Differential #Diagnosis ... #causes #infectiousdiseases
Amebiasis - Naegleria fowleri - Life Cycle
1) Cysts
2) Trophozoite
3) Flagellated Form
4) Promitosis
→ Water-related activities such as
migrate to the brain ... Trophozoites in CSF and brain ... fowleri #LifeCycle #diagnosis ... pathophysiology #infectiousdiseases ... #cdc #parasite