N'da H, Dauleac C, Toquart A, Afathi M, Meyronet D, Barrey C
Service de neurochirurgie C - chirurgie du rachis, hôpital neurologique, hospices civils de Lyon, 59, boulevard Pinel, 69677 Lyon, France.
Service de neurochirurgie C - chirurgie du rachis, hôpital neurologique, hospices civils de Lyon, 59, boulevard Pinel, 69677 Lyon, France.
Neurochirurgie. 2018 Jun;64(3):206-210. doi: 10.1016/j.neuchi.2018.03.001. Epub 2018 May 3.
Spinal dumbbell-shaped meningioma is a rare condition usually mistaken preoperatively for schwannoma. The present study reported a case of dumbbell-shaped meningioma, with an extensive review of literature.
A documented case of thoracic spine dumbbell-shaped meningioma is reported, followed by an extensive review of the literature to analyze epidemiological features, pathogenesis, histopathological diagnosis, location, Eden classification, surgical treatment and outcome in such tumors.
Case report: A 55 year-old woman was admitted with paraparesis and paresthesia of lower limbs. MRI showed a dumbbell-shaped meningioma of the thoracic spine. The tumor was totally removed via a posterolateral approach.
Twenty-one spinal dumbbell-shaped meningiomas were reported in the last twenty years (1997-2017). Mean patient age was 46.57 years, with female predominance. Mean disease progression was 23.11 months. The thoracic spine was the predominant site (38.09%), followed by the cervical spine (33.33%). Eden type-3 was the most frequent tumor type, accounting for 66.67% of cases. In all cases, meningiomas were classified as WHO grade I. Complete removal (Simpson I-II) was achieved in 75% of cases. There was recurrence in 3 patients (14%), including 1 case of malignant transformation leading to death at 12 years post-surgery.
Spinal dumbbell-shaped meningioma is mainly of the benign subtype. Long-term follow-up shows low rates of morbidity and mortality.
脊髓哑铃形脑膜瘤是一种罕见病症，术前通常被误诊为神经鞘瘤。本研究报告了一例哑铃形脑膜瘤病例，并对文献进行了广泛回顾。
报告一例有记录的胸椎哑铃形脑膜瘤病例，随后对文献进行广泛回顾，以分析此类肿瘤的流行病学特征、发病机制、组织病理学诊断、位置、伊登分类、手术治疗及预后。
病例报告：一名55岁女性因双下肢轻瘫和感觉异常入院。磁共振成像显示胸椎哑铃形脑膜瘤。通过后外侧入路将肿瘤完全切除。
过去二十年（1997 - 2017年）共报告了21例脊髓哑铃形脑膜瘤。患者平均年龄为46.57岁，女性居多。平均疾病进展时间为23.11个月。胸椎是主要发病部位（38.09%），其次是颈椎（33.33%）。伊登3型是最常见的肿瘤类型，占病例的66.67%。所有病例中，脑膜瘤均被分类为世界卫生组织一级。75%的病例实现了完全切除（辛普森I - II级）。3例患者复发（14%），其中1例发生恶性转化，术后12年死亡。
脊髓哑铃形脑膜瘤主要为良性亚型。长期随访显示发病率和死亡率较低。
