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Updated: May 6, 2026
Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Giant pediatric brainstem cavernoma: illustrative case
Andrew L DeGroot1, Randall W Treffy2,3, Omar Hussain2,3
1Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
Insights
A pediatric patient with a giant brainstem cavernous malformation underwent successful surgical resection using an uncommon approach. Intraoperative MRI guided the procedure, leading to near-baseline neurological function recovery.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Pediatric Neurosurgery
Background:
- Cerebral cavernous malformations are common vascular lesions, with brainstem locations posing significant management challenges due to critical anatomical structures.
- Brainstem cavernous malformations can lead to severe neurological deficits and hydrocephalus, necessitating careful consideration for intervention.
Purpose of the Study:
- To present a case study of a pediatric patient with a giant brainstem cavernous malformation.
- To describe an uncommon surgical approach and the use of intraoperative MRI for successful resection.
Main Methods:
- A 3-year-old male with a giant brainstem cavernous malformation presenting with hemiparesis and hydrocephalus.
- Surgical resection via a supracerebellar infratentorial approach.
- Utilization of intraoperative MRI to confirm complete tumor resection.
Main Results:
- The patient experienced recurrent hemorrhage and worsening hemiparesis despite initial steroid treatment.
- Complete resection of the brainstem cavernous malformation was achieved.
- Postoperative recovery resulted in the patient returning to near baseline neurological function.
Conclusions:
- An uncommon surgical approach, combined with advanced imaging like intraoperative MRI, can lead to excellent outcomes in pediatric patients with complex brainstem cavernous malformations.
- Careful planning and execution are crucial for managing these challenging lesions.
Background:
Cerebral cavernous malformations are low-flow vascular lesions and the most common of all vascular pathologies encountered by neurosurgeons. The location of these lesions is critically important in determining the symptomatology and whether intervention is indicated. Cavernous malformations localized to the brainstem are often the most complex of these to manage given the density of critical structures and tracts found within the brainstem.
Observations:
Here, the authors present the case of a 3-year-old male who presented with hemiparesis and eventually developed hydrocephalus from a giant brainstem cavernous malformation. The patient initially did well on steroids but had a recurrent hemorrhage that led to worsening hemiparesis and hydrocephalus. The authors then elected to resect the cavernous malformation via a supracerebellar infratentorial approach utilizing intraoperative MRI to ensure complete resection. Postoperatively, the patient returned to near baseline neurological function.
Lessons:
The authors describe an uncommon approach to the management of a pediatric patient with a giant brainstem cavernous malformation by carefully examining the potential approaches and utilizing available technologies to ensure an excellent outcome for the patient. https://thejns.org/doi/10.3171/CASE24814.
