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Unusual recurrence pattern in peritorcular meningioma--case report
1Department of Neurosurgery, Toride Kyodo General Hospital, Ibaraki.
Neurologia Medico-Chirurgica
|February 1, 1995
Summary
A recurrent peritorcular meningioma unusually grew within venous sinuses, obstructing outflow. Despite this, the patient had no symptoms due to collateral circulation, highlighting the need for vigilance in similar cases.
Area of Science:
- Neurosurgery
- Oncology
- Vascular Neurology
Background:
- Peritorcular meningiomas can recur, posing complex surgical challenges.
- Venous sinus involvement in meningiomas requires careful consideration of potential complications.
- Understanding venous anatomy and collateral pathways is crucial for managing intracranial tumors.
Observation:
- A 45-year-old female presented with a recurrent peritorcular meningioma originating from the confluens sinuum.
- The tumor extended into the left jugular bulb, completely within the venous sinuses.
- Venous outflow obstruction was present, yet the patient remained asymptomatic.
Findings:
- The asymptomatic presentation was attributed to the development of extensive collateral circulation.
- Intrasinus tumor growth can occur without overt clinical or neurological deficits.
- Tumor invasion of sinus walls necessitates consideration of intrasinus recurrence.
Implications:
- This case underscores the importance of considering intrasinus recurrence in meningioma patients with sinus wall involvement.
- Asymptomatic venous outflow obstruction due to intrasinus meningiomas is possible.
- Radiological surveillance and clinical vigilance are essential even in the absence of symptoms for patients with meningioma and sinus invasion.