16 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
Arrhythmias - Differential Diagnosis Algorithm
May present as: palpitations, dizziness, syncope, chest discomfort
Cardiac Causes:
 - Structural
Arrhythmias - Differential ... Algorithm May present as ... tissue (previous MI ... : - High Output ... Pregnancy - Metabolic
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... lung nodules, may also ... #differential # ... diagnosis #causes ... #radiology #neurology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
complications such as ... wasting from other causes ... urinary losses: • High ... diagnosis #Algorithm #differential ... #potassium #nephrology
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
parietal lobes of the brain ... visualized as a ... Reversible course Differential ... Drug toxicity, Metabolic ... diagnosis #management #neurology
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
dissipation of metabolic ... Excessive insulation, high ... Phaeochromocytoma Neurologic ... • Traumatic brain ... #Hyperthermia #Differential
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... transfusion • HTN and edema ... infusions) - Metabolic ... #diagnosis #causes ... #nephrology
Evolution of MRI Findings in Stroke

MR images at five subsequent time points in a 67-year-old woman
it possible to differentiate ... hyperintense at all ... 4 and remains high ... CVA #Clinical #Radiology ... Interpretation #Findings #Neurology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... transfusion • HTN and edema ... infusions) - Metabolic ... #diagnosis #causes ... #nephrology