World Neurosurg
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Meningiomas of the foramen magnum are among the most challenging of all skull base lesions. Controversies continue regarding the most appropriate approach to this critical anatomic region. The authors report a first case in English literature about twin meningiomas arising from both sides of the ventrolateral dura at the foramen magnum. ⋯ We suggest that resection can be safely achieved via the unilateral far lateral transcondylar approach followed by Gamma Knife radiosurgery (GKRS) or a staged bilateral approach.
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Review Case Reports
Rosai-Dorfman Disease of rare isolated spinal involement: report of four cases and literature review.
Rosai-Dorfman disease (RDD) is a rare histioproliferative disorder that only occasionally involves the central nervous system (CNS). ⋯ Preoperative diagnosis of spinal RDD is still challenging because the lesion is usually a dura-based lesion that mimics a meningioma. Surgical resection is an effective treatment, and radiotherapy, steroid therapy, and chemotherapy have not shown reliable therapeutic efficiency.