World Neurosurg
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Review Case Reports
Multiple spinal hemangioblastomas complicated with postoperative remote cerebellar hemorrhage: review of the literature of two rare entities.
Multiple spinal hemangioblastomas constitute a rare pathology; most patients have von Hippel-Lindau disease. In the literature, spinal surgery has been complicated with remote intracranial hemorrhage in a very few cases. ⋯ This case report includes 2 rare entities, of which every spinal surgeon should be aware.
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To analyze the clinical characteristics, immunohistochemistry, and treatment outcomes for skull base chordomas and the correlation between extent of resection/pathology type and outcomes. ⋯ Aggressive surgical resection should be performed for skull base chordomas, considering certain postoperative functional status. Immunohistochemical study is helpful in differential diagnosis. The combination of aggressive surgical resection and gamma knife radiosurgery for skull base chordomas may obtain favorable outcomes.
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Pineal parenchymal tumors of intermediate differentiation (PPTID) are extremely rare tumor entities, and only limited data are available regarding their pathologic features and biologic behaviors. Because grading criteria of pineal parenchymal tumors (PPTs) have yet to be established, the treatment strategy and prognosis of PPTIDs remain controversial. We describe the clinicopathologic study of six patients with PPTID and compare responses for the treatment and prognosis with cases of pineocytoma (PC) and pineoblastoma (PB). From this analysis, we attempt to clarify the treatment strategy for PPTIDs. ⋯ Good radiosensitivity of PPTIDs was observed in our series. Because there are cases with discrepancies between images and pathologic findings, it is very difficult to determine the proper treatment strategy for PPTIDs. Proliferative potential was correlated with World Health Organization grade, although the immunoreactivity of neuronal markers did not correlate with the histologic grade.
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Review Case Reports
Intracranial salivary gland choristoma within optic nerve dural sheath: case report and review of the literature.
Salivary gland choristomas or their neoplastic derivatives may appear throughout the intracranial space, most frequently in the middle ear or sella. Here, we present the case of a salivary gland choristoma embedded within the optic nerve dural sheath and review the literature of intracranial salivary gland masses. ⋯ Intracranial salivary tissue has been previously described but never before in the suprasellar space. Although rare, knowledge of their natural history and pathologic features may inform surgical management if they are encountered in the operating room.
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Clinical Trial
Posterior fossa reconstruction using titanium plate for the treatment of cerebellar ptosis after decompression for Chiari malformation.
We describe our use of a perforated titanium plate to perform a partial posterior fossa cranioplasty in the treatment of cerebellar ptosis and dural ectasia after posterior fossa decompression (PFD). ⋯ Placement of a titanium plate appears to be an effective method of treatment of cerebellar ptosis and dural ectasia after PFD for Chiari malformation.