12 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
- Compatible syndrome ... + MRI lesions + ... granulomatosis: • EBV-associated ... #Brain #differential ... #radiology #neurology
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Appearance of Liver Lesions ... Resonance Imaging (MRI ... #CT #MRI #POCUS ... #radiology #differential ... #diagnosis #comparison
Common MRI Sequences - Basic MRI Brain Interpretation

 • T1 Sequence - T1 is for anatomy.
Common MRI Sequences ... - Basic MRI Brain ... in many other lesions ... #Sequences #Radiology ... Neuroradiology #diagnosis
Intraarticular Chondroma - MSK Radiology
Imaging Findings:
 • Subtle soft-tissue infrapatellar mass seen obscuring Hoffa's fat pad.
• Best diagnostic ... joint effusions associated ... • Post-contrast ... calcifications associated ... Chondroma #clinical #mri
Leigh Syndrome 
History: 19-month-old girl with hypotonia, developmental 
delay, failure to thrive, and bilateral optic disc
Leigh Syndrome ... ) • Several different ... #Clinical #MRI ... #Brain #Diagnosis ... #Radiology
HIV-Associated Neurocognitive Disorder (HAND)

Definition:
HIV-Associated Neurocognitive disorders categories:
• Asymptomatic neurocognitive impairment
• Mild neurocognitive impairment
• HIV dementia

Pathophysiology:
HIV frequently
similar to PML, but MRI ... bilateral white matter lesions ... well-defined than PML lesions ... Diagnosis: MRI ... The clinical syndrome
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
- Differential Diagnosis ... nervous system: Brain ... • Infectious: Brain ... Neoplastic: Malignancy-associated ... EMG) studies • MRI
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
parietal lobes of the brain ... fluctuations PRES-Associated ... showing cortical lesions ... Vascular narrowing on MRA ... parietal lobes of the brain
Appearance of Liver Lesions on Contrast Enhanced Ultrasound - Early arterial, Grayscale phase, Late arterial phase,
Appearance of Liver Lesions ... on Contrast Enhanced ... #POCUS #radiology ... #differential #diagnosis ... #comparison #table
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
Differential diagnosis ... immunosuppression, close contact ... Includes cavitary lesions ... immunedeficiency syndrome ... #Radiology #RHS