27 results
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
Anaplasma Infection ... phagocytophilum Pathophysiology ... ), cough (30% cases ... #Anaplasma #Infection ... #diagnosis #microbiology
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 ... viral source Non-Infectious
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
toxo IgG • CNS PCR ... splenomegaly Other infections ... multiple lesions Infectious ... Syphilis • Pyogenic Abscess ... #causes #radiology
Microbial Etiology of Acute Pharyngitis - IDSA
Bacterial
 • Group A streptococcus - Pharyngotonsillitis, scarlet fever
 •
peritonsillar abscess ... croup • EBV - Infectious ... Primary acute HIV Infection ... #differential #causes ... #bacteria #microbiology
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
Causes of Seizures ... - Differential Diagnosis ... brain injury • Infectious ... Encephalitis, Brain Abscess ... Neurocysticercosis, PML
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... Opportunistic Infections ... opportunistic infections ... opportunistic infections ... and some infections
Hantavirus
Pathogen: Hantavirus - Rodents are the primary reservoir
Transmission:
 • Shed in the urine, feces, saliva of
common route of infection ... +/- diarrhea Diagnosis ... • Autopsy PCR ... #Hantavirus #diagnosis ... management #treatment #microbiology
Septic Arthritis: Pathogenesis and clinical findings
Notes:
- Septic Arthritis is typically monoarticular & the knee is involved
a +ve culture Microbiology ... : - Bacterial infection ... S.A. can also be caused ... SepticArthritis #pathophysiology ... #diagnosis
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... • Most common cause ... Pathophysiology ... of PCN allergy
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
resolution of infection ... -> Petrositis (infection ... inflammation or infection ... #Mastoiditis #pathophysiology ... signs #symptoms #diagnosis