摘要
目的探讨分析肺硬化性血管瘤（PSH）的CT及18F-FDGPET／CT影像特征，以提高诊断水平。方法收集2012年5月～2014年7月以“肺占位性病变、性质待定”行手术且经手术病理证实为PSH的患者共12例（男2例，女10例，年龄24--80岁），对其影像学资料，包括胸部CT平扫、CT增强扫描以及18F-FDGPET／CT全身显像（5例）进行回顾性分析，分析PSH的影像学特征，探讨更有效的诊断方法。结果12例患者中，9例为单发病灶（左肺4例，右肺5例），3例为多发病灶，其中1例为右肺下叶2个病灶，另2例为双肺多发病灶，可见病灶相贴或多发小病灶簇状分布。CT平扫示，病灶内部密度大致均匀，4例伴钙化，3例伴空气半月征。增强扫描示，病灶多数呈明显强化，个别病灶呈中度强化，8例均可见贴边血管征，6例可见囊变坏死。18F—FDGPET／CT检查示，病灶呈轻～中度不均匀片状放射性摄取，SUV～2．2—4．0。结论CT平扫及增强的多种表现对于PSH的诊断具有重要价值，18F-FDGPET／CT显像有助于病变良、恶性的鉴别诊断。
Objective To evaluate characteristics of CT and 18F-FDG PET/CT in pulmonary scle- rosing hemangioma （PSH）. Methods A retrospective study involving 12 patients （2 males, 10 females; 24-80 years old） confirmed as PSH by pathology from May 2012 to July 2014 was investigated. All patients underwent chest CT scan, including enhanced CT; and 5 cases underwent whole-body ISF-FDG PET/CT. All imaging data were collected and analyzed to find out a more effective diagnostic method. Results In 12 PSH patients, 9 had single lesion, of which 4 involved left lung and 5 right lung. The rest 3 patients inclu- ding 1 with two nodules located in the right lower lobe, and 2 with multiple nodules scattered in several lobes. Plain CT showed all lesions had uniformly isodensity, 4 with calcification, 3 with air meniscus sign. Contrast-enhanced CT examinations showed that the majority lesions were prominent enhancement and few moderate enhancement, all lesions showed vessel marginating sign and 6 with cystic and necrosis area. iSF- FDG PET/CT examinations showed that the lesions displayed patchy pattern of mild to moderate uptake with SUVmax 2.2--4.0. Conclusions The characteristic CT features of PSH, especially the contrast-enhanced CT imaging, are important for diagnosis, is F-FDG PET/CT findings are extremely helpful in differentiating PSH from malignant lesions.
出处
《中华核医学与分子影像杂志》
北大核心
2015年第4期251-253,共3页
Chinese Journal of Nuclear Medicine and Molecular Imaging
