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Background: Meningiomas are one of the most common benign primary brain tumors; however, there is a paucity of literature on potential preventability. This comprehensive review aimed to explore the existing evidence for the potential risk factors that may contribute to meningioma development and to discuss early prevention strategies., Methods: Literature search was conducted via MEDLINE, Embase, Web of Science, and Cochrane Database to retrieve existing literature on various environmental exposures and lifestyle behaviors that are potential risk factors for the development of meningiomas., Results: Significant risk factors included exposure to ionizing radiation and certain environmental chemicals. Notably, this study also identified that cigarette smoking and obesity are associated with the development of meningiomas. To date, wireless phone usage, hormonal exposures, dietary factors, and traumatic brain injury remain inconclusive. Early prevention strategies should primarily be family-driven, community-based, and public health-endorsed strategies. Targeting unhealthy behaviors through healthcare organizations could execute a pivotal role in the maintenance of an optimum lifestyle, reducing the development of risk factors pertinent to meningiomas., Conclusions: To our knowledge, this is the first study that offers a perspective on prevention of meningiomas. A causal relationship of risk factors in developing meningiomas cannot be directly established with the current evidence. We are aware of the limitations of the hypothesis, but we believe that this study will raise more awareness and our findings could potentially be endorsed by organizations promoting health across the globe. Further prospective and retrospective studies will shed more light on this topic and help establish a definitive relationship., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)

Aims  There is a recent trend toward delivering neurosurgical care in large supraregional centers with intradepartmental subspecialization. We report a 14-year prospective audit of a single surgeon's experience of intracranial tumor surgery with an emphasis on complications. Methods  A total of 616 procedures were performed on 596 patients of which 321 were male and 275 were female (age range: 1-84 years). Tumors were categorized as glioma, meningioma, metastasis, and other. Complications were recorded as infection, intracranial hematoma, neurologic deterioration, and death. Results  Of the 305 patients who underwent glioma surgery, 4 (1.3%) developed a hematoma, 4 (1.3%) had neurologic deterioration, 5 (1.6%) died within 30 days of surgery, and 1 (0.33%) had an infection. Of the 120 patients who underwent surgery for meningioma, 8 (6.6%) developed an infection, 1 (0.83%) developed a hematoma, and 7 (5.8%) had neurologic deterioration. Of the 59 patients who underwent surgery for brain metastasis, 1 (1.7%) had neurologic deterioration. Of the remaining patients, 4 (3.0%) developed infection and 6 (4.5%) had neurologic deterioration. Conclusions  The overall complication rate was infection, 2.1%; hematoma, 0.8%; neurologic deterioration, 2.9%; and death, 0.8%. These results compare favorably with published series., (Georg Thieme Verlag KG Stuttgart · New York.)

This 40-year-old man presented with a 5-month history of progressive right-sided headache associated with visual blurring. He also had a history of epilepsy but had been seizure free with medication for the past 10 years. An initial CT scan of his brain performed 16 years previously had revealed a small area of calcification in the right parietal region. In the current presentation, he had a left-sided homonymous hemianopia but no other neurological deficits. A CT scan of his brain showed a much larger calcified, partly cystic lesion in the right parietal region. Because he was symptomatic, the lesion was excised and the cyst was drained. Histological examination of the excised tissue showed an unusual primary tumor that was difficult to classify but had some features of angiocentric glioma. The heavy calcification, mixed-density cell population, and regions with features of angiocentric glioma were most unusual. The patient remained asymptomatic 5 years after surgery, and follow-up scans did not show recurrence.

Introduction: Pilocytic astrocytomas in the supratentorial compartment make up 20 % of all brain tumours in children with only 5 % of these arising in the suprasellar region. Optic pathway gliomas or suprasellar gliomas are often seen in neurofibromatosis type 1 (NF1) patients. Given their location, suprasellar pilocytic astrocytomas are challenging to manage surgically with high morbidity rates from surgical resection. We assess our cohort of patients with suprasellar pilocytic astrocytoma and document our experience., Method: A retrospective review of patients diagnosed with suprasellar glioma between 2000-October 2012. We included patients diagnosed with optic pathway glioma based on radiological features (with or without biopsy) and those who had a biopsy confirming pilocytic astrocytoma., Results: Fifty-three patients included (sporadic tumours 24 and NF1 related 29). Fifteen sporadic and four NF1 patients were biopsied. Twelve sporadic and 13 NF1 patients were initially treated with chemotherapy while only 1 patient had radiotherapy initially. Progression was noted in 58 % of the sporadic group and 24 % of the NF1 group. The only significant factor for progression was NF1 status (p = 0.026)., Conclusion: Management should be guided by individual patient circumstance. In our cohort, chemotherapy did not significantly improve progression free survival; however, NF1 status significantly correlated with the decreased progression.

Haemangiopericytomas are a group of aggressive soft tissue sarcomas that originate from the pericytes in the walls of capillaries. Local invasion of the surrounding structures is not uncommon. Symptoms depend on the location, size and grade of tumour. Coexistence with a benign tumour in the same location is very rare. We report an interesting case of occipital scalp lipoma with an underlying torcular haemangiopericytoma and skull defect.

The authors describe a case of a giant intracranial mature cystic teratoma in a 16-year-old girl presenting acutely with a severe headache, vomiting and a complex generalised seizure with a background history of intermittent headaches for 3 years. CT and MRI brain demonstrated a ruptured large cystic teratoma encapsulating two large teeth within the diffusely dense fatty heterogeneous lesion. Surgical debulking of the cyst was performed and the calcific remnants were left behind owing to dense adhesion to the brain. The procedure was complicated by postoperative hydrocephalus and needed a ventricloperitoneal shunt. She is currently asymptomatic and undergoing rehabilitation.

Benign central neurocytoma (CN) is a rare neuronal tumour of the central nervous system recognised since the early eighties. More than 300 articles have been published in the literature, mostly comprising of case reports and short series from individual specialties. These tumours, though normally benign, are more often likely to recur after surgery than previously thought. A multi-modality team involvement, therefore, has become increasingly necessary for their optimum management. In this article, the authors from various neurosciences sub-specialties, with a specific interest and experience in managing CN, review the epidemiology, clinical features, pathological findings, radiological characteristics and surgical treatment, with an emphasis on the latest developments in their histology, molecular biology and adjuvant treatment modalities for recurrent or residual disease.