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Parainfectious conus myelitis

S Pradhan1, R K Gupta, R Kapoor

  • 1Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India. spradhan@sgpgi.ren.nic.in

Journal of the Neurological Sciences
|January 8, 1999
PubMed
Summary
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Parainfectious conus myelitis (PICM) causes urinary symptoms due to spinal cord inflammation. Axial MRI images are crucial for diagnosis, as sagittal views may miss these lesions.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Radiology

Background:

  • Parainfectious myelitis (PIM) can present with diverse clinical and imaging features.
  • Selective involvement of the conus/epiconus region presents unique diagnostic challenges.

Purpose of the Study:

  • To describe the electroclinical and imaging characteristics of PIM affecting the conus/epiconus region.
  • To highlight the diagnostic utility of axial MRI in identifying these specific lesions.

Main Methods:

  • Retrospective study of 12 patients with PIM and conus/epiconus lesions on MRI.
  • Comprehensive clinical, electrophysiological, and spinal MRI evaluations, including axial imaging.

Main Results:

  • Patients presented with urinary symptoms and minimal/absent lower limb sensorimotor deficits.

Related Experiment Videos

  • MRI revealed inflammatory lesions predominantly in the central or lateral gray matter of the conus/epiconus.
  • Axial MRI views were more sensitive than sagittal views in detecting lesions.

    • Conclusions:

    • Parainfectious conus myelitis (PICM) is a distinct entity causing acute urinary symptoms.
    • Axial MRI is essential for diagnosing PICM, especially when sagittal views are inconclusive.
    • Early recognition and appropriate imaging can prevent misdiagnosis of this condition.