19 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... lung nodules, may also ... #Brain #differential ... diagnosis #causes #radiology ... #neurology
Evolution of stroke on CT and MRI. 

Day 1: NCHCT demonstrates obscure left insular cortex. No
Evolution of stroke ... on CT and MRI. ... #Stroke #CVA #MRI ... Progression #Timeline #Neurology ... #Radiology #Findings
Evolution of MRI Findings in Stroke

MR images at five subsequent time points in a 67-year-old woman
Findings in Stroke ... it possible to differentiate ... hyperintense at all ... CVA #Clinical #Radiology ... Interpretation #Findings #Neurology
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
the CNS from the brain ... from the cerebral cortex ... form part of the differential ... from the cortex ... of the foot is stroked
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Contralateral motor cortex ... sensory loss Brain ... Unilateral Spinal Cord ... Lesions Above ~ ... #Hemiplegia #Neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
monophasic Pathophysiology ... ruled out • Brain ... brain and/or optic ... diagnosis #management #neurology ... #differential
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Impairment: • Acute stroke ... of the spinal cord ... aminotransferases • Serology ... EMG) studies • MRI ... #Diagnosis #neurology
Timeline for Progression of T2WI and DWI Findings in Acute Stroke
 - In the acute phase
- DWI in brain ... onset (in spinal cord ... #Stroke #CVA #MRI ... Progression #Timeline #Neurology ... #Radiology #Findings
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
papilledema • Horner ... conditions: • Stroke ... Space-occupying brain ... lesion • CNS ... Diagnosis #Algorithm #neurology
Imaging Patterns of Toxic and Metabolic Brain Disorders

Thalami, Mammillary Bodies and Tectum: Wernicke Encephalopathy
Dentate Nuclei: Metronidazole,
and Cingulate Cortex ... Pons: ODS #MRI ... Disorders #Clinical #Differential ... #Diagnosis #Radiology ... #Neurology