PDF(Pubmed)
Abstract：
BACKGROUND: An ectopic meningioma, such as a primary pulmonary meningioma (PPM), is a rare type of tumor that primarily originates outside of the central nervous system. The most common presentation of PPM is isolated pulmonary nodules or masses, and most of them are benign. Only sporadic cases have been reported. This case reported a giant primary pulmonary meningioma and systematically reviewed previously reported cases in the literature.
METHODS: A 55-year-old female suffered from asthma after activity, chest tightness, and a persistent dry cough for 2 months. Chest computed tomography (CT) showed a huge mass with calcification in the left lower lobe. And positron emission tomography (PET)/CT revealed mild FDG accumulation of the mass. The mass was finally surgically removed and PPM was confirmed according to histopathologic examinations.
CONCLUSIONS: PPM is a rare disease with heterogeneity not only in CT features but also in glucose metabolism. FDG uptake levels do not identify benign from malignant, benign PPM may have high FDG uptake and malignant may have low.
METHODS: A 55-year-old female suffered from asthma after activity, chest tightness, and a persistent dry cough for 2 months. Chest computed tomography (CT) showed a huge mass with calcification in the left lower lobe. And positron emission tomography (PET)/CT revealed mild FDG accumulation of the mass. The mass was finally surgically removed and PPM was confirmed according to histopathologic examinations.
CONCLUSIONS: PPM is a rare disease with heterogeneity not only in CT features but also in glucose metabolism. FDG uptake levels do not identify benign from malignant, benign PPM may have high FDG uptake and malignant may have low.
摘要：
背景：异位脑膜瘤，例如原发性肺脑膜瘤（PPM），是一种罕见的肿瘤，主要起源于中枢神经系统之外。PPM最常见的表现是孤立的肺结节或肿块，而且大部分都是良性的.仅报告了零星病例。该病例报告了巨大的原发性肺脑膜瘤，并系统地回顾了文献中先前报道的病例。
方法：一名55岁的女性在活动后患有哮喘，胸闷,持续干咳2个月。胸部计算机断层扫描（CT）显示左下叶有巨大的肿块伴钙化。正电子发射断层扫描（PET）/CT显示肿块有轻度的FDG积累。最终通过手术切除肿块，并根据组织病理学检查确认PPM。
结论：PPM是一种罕见的疾病，不仅在CT特征上而且在糖代谢上都具有异质性。FDG摄取水平不能识别良性和恶性，良性PPM可能有高FDG摄取和恶性可能有低。
方法：一名55岁的女性在活动后患有哮喘，胸闷,持续干咳2个月。胸部计算机断层扫描（CT）显示左下叶有巨大的肿块伴钙化。正电子发射断层扫描（PET）/CT显示肿块有轻度的FDG积累。最终通过手术切除肿块，并根据组织病理学检查确认PPM。
结论：PPM是一种罕见的疾病，不仅在CT特征上而且在糖代谢上都具有异质性。FDG摄取水平不能识别良性和恶性，良性PPM可能有高FDG摄取和恶性可能有低。
