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Case Reports
Journal Article
Surgical Resection of Large Primary Intraosseous Meningiomas (6 Case Reports).
World Neurosurgery 2023 July
OBJECTIVE: The clinical features and surgical techniques related to patients undergoing resection of extracranial large primary intraosseous meningiomas are studied.
METHODS: The clinical characteristics, treatment, and prognosis of 6 patients with primary intraosseous meningiomas larger than 5 cm in diameter were retrospectively reviewed in the 10th Neurosurgical Department of Beijing Tiantan Hospital, Capital Medical University.
RESULTS: Five males and one female (18-57 years old) suffered from large primary intraosseous meningiomas. The main symptoms were headaches accompanied by head swelling. CT showed irregular thickening of the bone diploe with increased density and uneven surface. MRI showed partial bone destruction of the skull, local thickening of the internal and external plates, shell and palisade changes of the external cranial plate, and enhancement of the adjacent meninges. A horseshoe or coronary incision plus the "Mercedes-Benz" incision were chosen to expose the skull bone, and drilling was performed in the normal skull bone at the transition zone between abnormal and normal skull bone. After drilling, the sub flap dura was dissected, the hyperplastic skull was dissected with a milling cutter, and the residual tumor was then resected. A cranioplasty was performed 6 months to 1 year later.
CONCLUSIONS: Surgical treatment and precise perioperative management can achieve a better prognosis for large intraosseous meningiomas.
METHODS: The clinical characteristics, treatment, and prognosis of 6 patients with primary intraosseous meningiomas larger than 5 cm in diameter were retrospectively reviewed in the 10th Neurosurgical Department of Beijing Tiantan Hospital, Capital Medical University.
RESULTS: Five males and one female (18-57 years old) suffered from large primary intraosseous meningiomas. The main symptoms were headaches accompanied by head swelling. CT showed irregular thickening of the bone diploe with increased density and uneven surface. MRI showed partial bone destruction of the skull, local thickening of the internal and external plates, shell and palisade changes of the external cranial plate, and enhancement of the adjacent meninges. A horseshoe or coronary incision plus the "Mercedes-Benz" incision were chosen to expose the skull bone, and drilling was performed in the normal skull bone at the transition zone between abnormal and normal skull bone. After drilling, the sub flap dura was dissected, the hyperplastic skull was dissected with a milling cutter, and the residual tumor was then resected. A cranioplasty was performed 6 months to 1 year later.
CONCLUSIONS: Surgical treatment and precise perioperative management can achieve a better prognosis for large intraosseous meningiomas.
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