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March 26, 2026Neurology and Clinical Neuroscience

The Heart‐Shaped Clue: Bilateral Medial Medullary Infarction Masquerading as Myasthenic Crisis

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Authors

RYRyo YoshiyamaKFKazuhiro FukushimaTKToshinari Kondo

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Overview

A case reveals the challenges of diagnosing bilateral medial medullary infarction in an elderly man, suggesting critical implications for timely intervention.

Key Points

  • The research aims to illustrate the presentation and management of bilateral medial medullary infarction mistaken for a myasthenic crisis.
  • Reported a case of a 78-year-old male with sudden neurological decline.
  • Performed MRI with diffusion-weighted imaging to identify stroke features.
  • Administered intensive care including mechanical ventilation and therapy for recovery.
  • MRI revealed heart-shaped hyperintensity confirming bilateral medial medullary infarction.
  • Patient exhibited quadriplegia and respiratory failure before treatment.
  • Showed partial motor recovery and communication ability using assistive tools after 6 months.

Cite This Study

Yoshiyama et al. (2026) studied this question.

synapsesocial.com/papers/69c4ccc9fdc3bde448918654https://doi.org/10.1002/ncn3.70100
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