20 results
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
- Differential Diagnosis ... Leg Pain: • Infection ... entrapment • Infections ... lower #extremity #msk ... #physicalexam
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
Causes of Seizures ... - Differential Diagnosis ... vasoconstriction syndrome ... brain injury • Infectious ... Encephalitis, Brain Abscess
Hantavirus
Pathogen: Hantavirus - Rodents are the primary reservoir
Transmission:
 • Shed in the urine, feces, saliva of
common route of infection ... Cardiopulmonary Syndrome ... +/- diarrhea Diagnosis ... #Hantavirus #diagnosis ... #microbiology #infectiousdiseases
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... - Differential Diagnosis ... antibiotics as a cause ... #InfectiousDiseases
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... - Compatible syndrome ... toxo IgG • CNS PCR ... Syphilis • Pyogenic Abscess ... #causes #radiology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
- Differential Diagnosis ... cells per μL • Diagnosis ... tuberculomas, or abscesses ... Demyelinating disease caused ... opportunistic #InfectiousDiseases
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
- Differential Diagnosis ... • Abscess, bacteremia ... Causes: • Still's ... Leptospirosis Pel-Ebstein ... #Differential #Diagnosis
Causes of Hypotonic Infant (Floppy Newborn) - Differential Diagnosis Algorithm
Central Nervous System - Decreased LOC, Axial
Causes of Hypotonic ... - Differential Diagnosis ... Hemorrhage • CNS Infection ... Other Congenital Syndromes ... Hematoma • Abscess
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Causes: • Large ... epidural hematoma • Infection ... (abscess, etc) ... #MSK #pathophysiology ... #diagnosis #symptoms
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
but important causes ... BCNIE Diagnostic ... antiphospholipid syndrome ... #Endocarditis #diagnosis ... differential #workup #infectiousdiseases