Pinna G, Beltramello A, Buffatti P, Signorini G, Colombari R, Bricolo A, Dalle Ore G
Surg Neurol. 1986 Nov;26(5):441-52. doi: 10.1016/0090-3019(86)90256-9.
Eighteen unusual cases of intracranial meningioma associated with a cyst are considered. Three patients were operated upon before the introduction of computed tomography scanning, and the discovery of a peritumoral cyst was unexpected. Among 15 patients studied with computed tomography, 8 had a peritumoral cyst, 6 had an intratumoral cyst, and 1 had a totally cystic meningioma (hypodense on computed tomography). Computed tomography permitted a correct preoperative diagnosis only in four cases. In six additional cases diagnosis was reached by selective angiographic studies. In the remaining cases diagnosis was impossible or incorrect. Different pathogenetic mechanisms underlie different radiologic patterns. The authors comment on the complex processes that lead to cyst formation in meningiomas and stress the necessity of an accurate preoperative study to avoid misdiagnosis.
本文考虑了18例伴有囊肿的颅内脑膜瘤罕见病例。3例患者在计算机断层扫描（CT）引入之前接受了手术，瘤周囊肿的发现出乎意料。在15例接受CT检查的患者中，8例有瘤周囊肿，6例有瘤内囊肿，1例为完全囊性脑膜瘤（CT表现为低密度）。CT仅在4例中做出了正确的术前诊断。另外6例通过选择性血管造影研究做出了诊断。在其余病例中，诊断无法做出或诊断错误。不同的发病机制导致不同的放射学表现。作者对导致脑膜瘤囊肿形成的复杂过程进行了评论，并强调术前准确研究以避免误诊的必要性。
