Internal carotid artery fenestration with contralateral internal carotid artery dissection: a case report and literature review - Scorecard - MDSpire

Internal carotid artery fenestration with contralateral internal carotid artery dissection: a case report and literature review

  • By

  • Dehong Yang

  • Zengjing Cheng

  • Yunjia Zhu

  • Lingxiang Fan

  • Binglin Chen

  • Chungang Dai

  • Ailin Chen

  • Qing Zhu

  • July 15, 2026

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Clinical Scorecard: Contralateral Internal Carotid Artery Dissection Accompanying Internal Carotid Artery Fenestration: A Case Study and Review of Existing Literature

At a Glance

CategoryDetail
ConditionInternal Carotid Artery Fenestration with Contralateral Dissection
Key MechanismsCongenital cerebrovascular anomaly with hemodynamic implications.
Target PopulationPatients with internal carotid artery anomalies, particularly older adults.
Care SettingNeurointerventional and vascular imaging settings.

Key Highlights

  • ICAF is a rare congenital anomaly, accounting for 1.3% of cerebral artery fenestrations.
  • Coexistence with contralateral ICA dissection is exceptionally rare.
  • CFD analysis can help identify high-risk lesions and guide treatment.
  • Conservative management with antiplatelet therapy is appropriate for stable ICAF.
  • The case demonstrates successful intervention with stent-assisted coiling.

Guideline-Based Recommendations

Diagnosis

  • Use imaging techniques like CTA and DSA to confirm diagnosis.

Management

  • Consider dual antiplatelet therapy for symptomatic patients.
  • Endovascular stent implantation may be indicated for high-risk dissections.

Monitoring & Follow-up

  • Follow-up imaging to assess lesion stability and morphology.

Risks

  • High-risk for rupture in cases of ICA dissection.

Patient & Prescribing Data

Older adults with cerebrovascular anomalies.

Dual antiplatelet therapy followed by stent-assisted coiling for high-risk dissections.

Clinical Best Practices

  • Utilize CFD for hemodynamic assessment in complex cases.
  • Individualize treatment based on lesion characteristics and patient symptoms.

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