Summary
Lateral ventricular meningiomas (LVMs) are especially rare, and they often remain “silent” until they become very large. Several surgical approaches exist, but the optimal surgical strategy for them remains a challenge. The incidence, clinical features, radiological manifestations, pathological findings, and especially the surgical strategy in 21 patients with LVMs were analyzed retrospectively. The mean age of patients was 42.7 years (range, 17 to 78 years). Raised intracranial pressure was the main presenting symptom. The definite diagnosis of LVMs in most cases was made by computed tomography (CT) or magnetic resonance imaging (MRI). Six patients were subjected to plain CT scans, 15 to contrast MR scans, and 4 to a magnetic resonance angiogram (MRA). Large tumors were seen in most cases with an average diameter of more than 4.3 cm. Of the 21 cases of LVMs in our series, LVMs were resected in 16 cases via a posterior parieto-occipital transcortical approach, 2 cases via a transcallosal approach, and 3 cases via a posterior middle temporal gyrus approach. In 8 out of 21 cases, the tumors were located in the left lateral ventricle. The gross total surgical excision was achieved in 18 (86%) patients, and all LVMs were pathologically confirmed to be benign. Nine patients were followed up (range: 11 months–4.6 years). Eight (88.9%) cases obtained good recovery and one (11.1%) obtained moderate disability. Four approaches are available for the surgical treatment of LVMs. The choice of surgical approaches depends on tumor location, laterality, size and extension, and the function of the brain must be taken into account. Intracapsular resection and piecemeal resection of LVMs can be safely and easily performed. Preoperative MRA scan is important to know the feeder of LVMs and peripheral blood supply.
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Zhang, Wh., Xie, M., Liu, H. et al. Surgical challenges for lateral ventricle meningiomas: A consecutive series of 21 patients. J. Huazhong Univ. Sci. Technol. [Med. Sci.] 35, 742–746 (2015). https://doi.org/10.1007/s11596-015-1500-8
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DOI: https://doi.org/10.1007/s11596-015-1500-8