Mittal Amit, Layton Kennith F, Finn S Sam, Snipes George J, Opatowsky Michael J
Departments of Radiology (Mittal, Layton, Opatowsky), Neurosurgery (Finn), and Pathology (Snipes), Baylor University Medical Center at Dallas.
Proc (Bayl Univ Med Cent). 2010 Oct;23(4):429-31. doi: 10.1080/08998280.2010.11928664.
Meningiomas are common tumors of the central nervous system that account for approximately 15% of all intracranial tumors and are the most common extra-axial neoplasm. Most meningiomas are benign, although atypical and malignant meningiomas also exist. Typical imaging characteristics include a well-circumscribed, homogeneously enhancing, extra-axial mass on both computed tomography and magnetic resonance imaging. The presence of an associated cyst is an uncommon imaging feature that may make it difficult to distinguish the tumor from a primary intra-axial glial neoplasm. The presence of peritumoral edema can also be a misleading finding. We present a case of a woman who presented with a history of multiple recent falls, decreased energy, and increased somnolence and was found to have a "cystic meningioma." Typical imaging characteristics, histologic subtypes, treatment, and prognosis are also discussed.
脑膜瘤是中枢神经系统的常见肿瘤,约占所有颅内肿瘤的15%,是最常见的轴外肿瘤。大多数脑膜瘤是良性的,不过也存在非典型和恶性脑膜瘤。典型的影像学特征包括在计算机断层扫描和磁共振成像上均表现为边界清晰、均匀强化的轴外肿块。伴有囊肿是一种不常见的影像学特征,可能难以将肿瘤与原发性轴内胶质瘤区分开来。瘤周水肿的存在也可能是一个误导性的发现。我们报告一例女性病例,该患者有近期多次跌倒、精力下降和嗜睡增加的病史,被发现患有“囊性脑膜瘤”。还讨论了典型的影像学特征、组织学亚型、治疗方法和预后。