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Related Concept Videos

Autoimmune Disorders01:29

Autoimmune Disorders

Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune system...
Myocarditis II: Clinical Features and Diagnostic Tests01:27

Myocarditis II: Clinical Features and Diagnostic Tests

Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
Graves' Disease I: Introduction01:28

Graves' Disease I: Introduction

Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactivity of the thyroid gland. It results from autoantibodies called thyroid-stimulating immunoglobulins (TSIs), which bind to thyroid-stimulating hormone (TSH) receptors, leading to overstimulation of hormone production and a hypermetabolic state.EtiologyAlthough considered idiopathic, Graves’ disease has well-established contributing factors. There is a strong genetic component, with increased prevalence in...

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Related Experiment Video

Updated: May 21, 2026

Imaging CD19+ B Cells in an Experimental Autoimmune Encephalomyelitis Mouse Model using Positron Emission Tomography
09:41

Imaging CD19+ B Cells in an Experimental Autoimmune Encephalomyelitis Mouse Model using Positron Emission Tomography

Published on: January 20, 2023

[Infection or Autoimmunity: Key Imaging Points for Differential Diagnosis].

Keita Watanabe1, Kei Yamada

  • 1Department of Radiology, Kyoto Prefectural University of Medicine.

Brain and Nerve = Shinkei Kenkyu No Shinpo
|May 19, 2026
PubMed
Summary
This summary is machine-generated.

Differentiating infectious encephalitis from autoimmune encephalitis using MRI is challenging due to overlapping features. This review highlights key MRI patterns to aid diagnosis, emphasizing clinical integration for accurate interpretation.

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Last Updated: May 21, 2026

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Area of Science:

  • Neurology
  • Radiology
  • Infectious Diseases

Background:

  • Differentiating infectious and autoimmune encephalitis is clinically challenging.
  • Magnetic resonance imaging (MRI) findings often overlap between these conditions.
  • Prior treatments can alter imaging, complicating diagnosis.

Purpose of the Study:

  • To review key MRI features of infectious and autoimmune encephalitis.
  • To emphasize pre-treatment imaging patterns for diagnostic accuracy.
  • To discuss diagnostic pitfalls and the importance of integrating imaging with clinical data.

Main Methods:

  • Review of MRI findings in infectious and autoimmune encephalitis.
  • Emphasis on pre-treatment imaging characteristics.
  • Discussion of lesion distribution, symmetry, and temporal evolution.

Main Results:

  • Infectious encephalitis: meningeal enhancement, diffusion restriction, hemorrhage, vascular changes.
  • Autoimmune encephalitis: mild/nonspecific signal abnormalities, limited enhancement.
  • Distinguishing features include lesion patterns and evolution.

Conclusions:

  • Radiologists must integrate MRI findings with clinical and laboratory data.
  • Recognizing imaging strengths and limitations is crucial for accurate diagnosis.
  • Understanding typical patterns aids diagnostic reasoning and treatment strategies.