Infectious Myelitis

Isabeli Camila Miyoshi1, André Henrique Nogueira de Toledo1, Fernanda Veloso Pereira1

  • 1Department of Anesthesiology, Oncology and Radiology, UNICAMP, Campinas, SP, Brazil.

Insights

Infectious myelitis, a diverse group of spinal cord disorders, can mimic tumors. Magnetic resonance imaging aids in diagnosing specific infectious agents causing myelitis.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Radiology

Background:

  • Myelitis encompasses inflammatory, demyelinating, and infectious conditions affecting the spinal cord.
  • These diverse pathologies can present with symptoms that mimic neoplastic (tumor) processes.
  • Distinguishing infectious causes is crucial for appropriate treatment and patient outcomes.

Purpose of the Study:

  • To review the spectrum of infectious myelitis.
  • To delineate characteristic spinal cord imaging patterns associated with specific infectious agents.
  • To highlight the role of magnetic resonance imaging (MRI) in diagnosing infectious myelitis.

Main Methods:

  • Literature review focusing on infectious myelitis and spinal cord imaging.
  • Analysis of patterns of spinal cord involvement in infectious myelitis.
  • Emphasis on the diagnostic utility of MRI in identifying infectious etiologies.

Main Results:

  • Infectious myelitis presents with varied patterns of spinal cord inflammation and damage.
  • Specific infectious agents demonstrate distinct MRI findings, aiding in etiological diagnosis.
  • MRI is instrumental in differentiating infectious myelitis from other myelitic processes and tumors.

Conclusions:

  • Infectious myelitis is a significant diagnostic consideration in spinal cord pathologies.
  • Understanding the imaging characteristics of different infectious agents is key for diagnosis.
  • Magnetic resonance imaging is an indispensable tool for the diagnosis and management of infectious myelitis.

Related Concept Videos

Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
9
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...
12
Myocarditis III: Medical Management01:14

Myocarditis III: Medical Management

Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
9
Nervous Tissue: Myelin01:25

Nervous Tissue: Myelin

The myelin sheath is a multilayered lipid and protein covering that insulates the axon of a neuron, enhancing the speed of nerve impulse conduction. Axons without this sheath are referred to as unmyelinated. Two types of neuroglia, Schwann cells in the peripheral nervous system (PNS) and oligodendrocytes in the central nervous system (CNS) are responsible for producing myelin sheaths.
Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...
2.7K