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Related Concept Videos

The Arch of Aorta01:10

The Arch of Aorta

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The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
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  3. Research Domains
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  11. Rete Anomaly Of The Middle Cerebral Artery: Case Series Of 13 Patients From The Northeastern United States.
  1. Home
  3. Research Domains
  5. Indigenous Studies
  7. Te Ahurea, Reo Me Te Hītori O Te Māori (māori Culture, Language And History)
  9. Ngā Taonga Māori Nō Mua (māori Artefacts)
  11. Rete Anomaly Of The Middle Cerebral Artery: Case Series Of 13 Patients From The Northeastern United States.

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Rete anomaly of the middle cerebral artery: case series of 13 patients from the Northeastern United States.

Srinath Ramaswamy1, Cyrus X Colah2, Shaobo Guan2

  • 1Department of Neurology, Columbia University Irving Medical Center, New York, New York, USA sr3529@cumc.columbia.edu.

Journal of Neurointerventional Surgery
|December 18, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

Rete middle cerebral artery (MCA) anomaly is found in non-Asian individuals and appears benign compared to Moyamoya disease (MMD). Diagnosis requires unilateral, non-progressive findings without MMD-type collaterals.

Keywords:
AngiographyArteryBlood FlowBrain

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Area of Science:

  • Neurology
  • Vascular Neurology
  • Neuroimaging

Background:

  • Rete middle cerebral artery (MCA) anomaly is a rare intracranial vascular condition.
  • It is often misdiagnosed as congenital Moyamoya disease (MMD) and historically reported in East-Asian populations.
  • This study investigates rete MCA in a predominantly non-Asian population in the USA.

Purpose of the Study:

  • To characterize the clinical presentation, imaging findings, and outcomes of rete MCA anomaly in a non-Asian cohort.
  • To differentiate rete MCA from Moyamoya disease (MMD) based on diagnostic features.
  • To evaluate the safety and efficacy of neurosurgical interventions for rete MCA.

Main Methods:

  • Retrospective review of 13 adult patients diagnosed with rete MCA anomaly at Columbia University Medical Center (2014-2024).
Congenital
  • Analysis of demographics, clinical symptoms, neuroimaging (including MRI vessel wall imaging), and neurosurgical interventions.
  • Assessment of clinical outcomes and neurovascular events during follow-up.

    • Main Results:

    • The cohort (n=13) was predominantly female (83.3%) and non-Asian (White, Hispanic, South-Asian, Black).
    • All cases were unilateral, lacked Moyamoya disease (MMD)-type collaterals, and showed no progression on serial imaging.
    • Five patients (38.5%) experienced strokes (hemorrhagic or ischemic); five (38.5%) underwent bypass surgery with no acute events during a mean 4-year follow-up.

    Conclusions:

    • Rete MCA anomaly occurs in non-Asian populations and appears to have a benign clinical course relative to Moyamoya disease (MMD).
    • Key diagnostic indicators include unilateral, non-progressive findings and the absence of MMD-type collaterals.
    • Neurosurgical bypass is a safe option, but further research is needed on the natural history and stroke risk of rete MCA.