■脑膜瘤主要是中枢神经系统的良性和缓慢生长的肿瘤。脊柱脑膜瘤占成人所有硬膜内脊柱肿瘤的45%,占所有脊柱肿瘤的25%-45%。脊髓硬膜外脑膜瘤很少见,很容易与恶性肿瘤混淆。
■一名24岁的妇女因截瘫和T7皮刀和下身感觉丧失而被送往我们的医院。MRI表现为T6-T7右侧硬膜内髓外及硬膜外病变,1.4厘米×1.5厘米×3厘米,延伸到右孔,压迫脊髓,把它移到左边。观察到T2上的高强度病变和T1上的低信号病变。患者报告在手术后和随访期间有所改善。我们建议在手术过程中最大限度地减压,以获得更好的临床结果。硬膜外脑膜瘤占所有脑膜瘤的5%;因此,在硬脑膜外脑膜瘤上有一个硬膜内,并伴有椎间孔外延伸,这使得这是一个独特而罕见的病例。
■脑膜瘤在诊断中很容易漏诊,这取决于影像学和它所代表的病理模式,可以模仿其他病理,比如神经鞘瘤.因此,即使模式不典型,外科医生也应始终怀疑患者患有脑膜瘤。此外,术前准备,如导航和缺陷闭合,必须采取的情况下,事实证明是脑膜瘤,而不是假定的病理学。
UNASSIGNED: Meningiomas are mostly benign and slow-growing neoplasms of the central nervous system. Spinal meningiomas account for up to 45% of all intradural spinal tumors in adults and up to 25%-45% of all spinal tumors. Spinal
extradural meningiomas are rare and may be easily confused with malignant neoplasms.
UNASSIGNED: A 24-year-old woman was presented to our hospital with paraplegia and loss of sensation in the T7 dermatome and lower body. MRI findings showed T6-T7 right-sided intradural extramedullary and
extradural lesion, measuring 1.4 cm × 1.5 cm × 3 cm, extending to the right foramen, compressing the spinal cord, and displacing it to the left. Hyperintense lesion on T2 and hypointense lesion on T1 were observed. The patient reported improvement after surgery and during follow-up. We recommend maximizing the decompression during surgery to achieve better clinical outcome.
Extradural meningiomas represent 5% of all meningiomas; therefore, having an intradural on top of
extradural meningioma with extraforaminal extensions makes this a unique and rare
case.
UNASSIGNED: Meningiomas can be easily missed in diagnosis depending on imaging and the pathognomonic pattern it represents, which can mimic other pathologies, such as schwannomas. Therefore, surgeons should always suspect their patient having a meningioma even if the pattern is not typical. Moreover, preoperative preparation, such as navigation and defect closure, must be taken in
case it turns out be a meningioma instead of the presumed pathology.