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Atypical postoperative radiographical findings in a patient with moyamoya disease: A case report

Masaki Ikegami1, Tomoya Kamide1, Toshiki Ikeda1

  • 1Department of Cerebrovascular Surgery, International Medical Center, Saitama Medical University, Hidaka, Japan.

Radiology Case Reports
|February 27, 2019
PubMed

Insights

Moyamoya disease patients may experience temporary neurological events after revascularization surgery. This case highlights subacute hemodynamic complications, emphasizing the need for vigilance post-procedure.

Area of Science:

  • Neurology
  • Neurosurgery
  • Radiology

Background:

  • Moyamoya disease involves progressive stenosis of major cerebral arteries.
  • Revascularization surgery aims to improve blood flow and reduce stroke risk.
  • Postoperative complications following revascularization can occur.

Observation:

  • A 14-year-old patient with moyamoya disease developed left hemiparesis on postoperative day 4 after right-sided revascularization.
  • MRI revealed transient hyperintense lesions in the middle cerebral artery territory on diffusion-weighted and ADC imaging.

Findings:

  • The patient's neurological symptoms and MRI findings resolved spontaneously within days.
  • This suggests a subacute hemodynamic complication rather than a permanent ischemic event.

Implications:

  • Successful revascularization for moyamoya disease can still be associated with transient hemodynamic complications.
  • Radiological features and mechanisms of these rare post-revascularization events warrant further investigation.
Keywords:
AtypicalMoyamoya diseaseRevascularization surgery

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