19 results
Differential diagnosis for toxic/metabolic encephalopathies - Patterns on Brain Imaging

Cynthia Czawlytko, MD @drcyncity

#Differential #diagnosis #encephalopathies #encephalopathy
Differential diagnosis ... for toxic/metabolic ... imaging #patterns #MRI ... #Neurology #pathology ... #diseases #radiology
Imaging Patterns of Toxic and Metabolic Brain Disorders

Thalami, Mammillary Bodies and Tectum: Wernicke Encephalopathy
Dentate Nuclei: Metronidazole,
Parieto-Occipital Vasogenic Edema ... Pons: ODS #MRI ... #Clinical #Differential ... #Diagnosis #Radiology ... #Neurology
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
Causes of Seizures ... - Differential ... Encephalitis, Brain ... Neurocysticercosis, PML • Metabolic ... #neurology
Alice in Wonderland Syndrome
What? Metamorphophsia - Distortions of the visual perceptions with changes in size (micro
(Many causes!) ... * (most common cause ... encephalitis) • Brain ... Syndrome #diagnosis #neurology ... #differential
Algorithm for evaluating multiple ring-enhancing lesions in immunocompetent (HIV negative)

#ringenhancing #lesions #cns #brain #diagnosis #differential #algorithm
#lesions #cns #brain ... #diagnosis #differential ... #algorithm #causes ... #radiology #neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... RingEnhancing #Lesions #Brain ... #differential # ... diagnosis #causes ... #radiology #neurology
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
parietal lobes of the brain ... may precede the neurologic ... Reversible course Differential ... Drug toxicity, Metabolic ... diagnosis #management #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... nervous system: Brain ... • Infectious: Brain ... EMG) studies • MRI ... #Diagnosis #neurology
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
dissipation of metabolic ... amphetamines) Toxic: • Radiologic ... Phaeochromocytoma Neurologic ... • Traumatic brain ... #Hyperthermia #Differential
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
contrast enhancement Brain ... neurological symptoms • Caused ... Imaging: cerebral edema ... Tuberculosis #diagnosis #differential ... #TB #neurology