PDF(Pubmed)
Abstract：
Intracranial meningiomas are the most common primary brain tumors, typically presenting with well-defined imaging characteristics. This case report focuses on a 56-year-old female patient who was referred due to a history of head trauma and an incidental space-occupying finding to investigate the atypical imaging appearances of intracranial meningiomas, focusing on a specific case with distinct radiological findings. Meningiomas are commonly associated with specific radiological features, such as contrast enhancement, dural tail, and hyperostosis. However, this particular case exhibited atypical imaging characteristics that raised concerns about the underlying tumor type. In-depth analysis and subsequent histopathological examination revealed a World Health Organization (WHO) grade II atypical meningioma. This variant of meningioma demonstrated increased cellularity, nuclear atypia, and a high mitotic index, indicating more aggressive tumor behavior. The study highlights the importance of recognizing atypical imaging appearances in meningiomas, as they may indicate higher-grade tumors with a potentially different clinical course and management approach. Accurate identification of these atypical features can contribute to improved diagnostic accuracy and guide appropriate surgical decision-making for patients with intracranial meningiomas.
摘要：
颅内脑膜瘤是最常见的原发性脑肿瘤，通常具有明确的成像特征。该病例报告主要针对一名56岁的女性患者，该患者因头部外伤史和偶然的占位性发现而被转诊，以调查颅内脑膜瘤的非典型影像学表现，专注于具有不同放射学结果的特定病例。脑膜瘤通常与特定的放射学特征有关，例如对比度增强，硬脑膜尾部,和骨增生。然而,这一特殊病例表现出非典型的影像学特征,引起了对潜在肿瘤类型的担忧.深入分析和随后的组织病理学检查显示，世界卫生组织（WHO）II级非典型脑膜瘤。这种脑膜瘤的变异表现出细胞增加，核非典型性,和高的有丝分裂指数，表明更具侵袭性的肿瘤行为。该研究强调了识别脑膜瘤中非典型影像学表现的重要性，因为它们可能表明具有潜在不同临床病程和治疗方法的高级别肿瘤。准确识别这些非典型特征有助于提高诊断准确性，并指导颅内脑膜瘤患者的适当手术决策。
