13 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Ring-Enhancing Lesions ... toxo IgG • CNS PCR ... #Brain #differential ... #diagnosis #causes ... #radiology #neurology
Algorithm for evaluating multiple ring-enhancing lesions in immunocompetent (HIV negative)

#ringenhancing #lesions #cns #brain #diagnosis #differential #algorithm
ring-enhancing lesions ... ringenhancing #lesions ... brain #diagnosis #differential ... #algorithm #causes ... #radiology #neurology
Posterior Ankle Impingement (Os Trigonum) Syndrome - MSK Radiology
Imaging Findings:
 • Os trigonum which has marrow
Syndrome - MSK Radiology ... posterolateral talus ... Case description ... hallucis longus Differential ... osteochondral lesion
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
in HIV / AIDS - Differential ... parietal - Size lesions ... Demyelinating disease caused ... Enhancement: multifocal lesions ... punched-out" cystic lesions
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
pulmonary • Janeway lesions ... Marantic (NTBE) Differential ... or destructive lesion ... destructive penetrating lesions ... Endocarditis #diagnosis #management
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Causes of Metabolic ... Alkalosis: Differential ... furosemide-like lesion ... #Diagnosis #Causes ... #nephrology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
of PCN allergy ... stable residual lesion ... Lung Abscess Differential ... Abscess #pulmonary #differential ... #causes #management
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
compressive cord lesion ... less swollen - Lesion ... • Infectious causes ... or optic nerve lesions ... #neurology #differential
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
or sed rate): Value ... very remarkable w/differential ... GCA, but normal values ... required due to skip lesions ... Symptoms #Diagnosis #Management
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
showing cortical lesions ... Reversible course Differential ... the underlying cause ... Syndrome #diagnosis #management ... #neurology