摘要
目的探讨原发性肺淋巴瘤(PPL)的18F-FDG PET/CT表现。方法回顾性分析11例经病理证实的PPL的18F-FDG PET/CT影像表现,并测量病灶的最大标准化摄取值(SUVmax)。结果 11例患者中,结节硬化型霍奇金病2例,非霍奇金病9例,包括支气管黏膜相关淋巴组织结外边缘区B细胞淋巴瘤(MALT)7例、弥漫性大B细胞淋巴瘤1例、血管内大B细胞淋巴瘤1例;其中3例MALT淋巴瘤合并淋巴细胞性间质性肺炎(LIP)。6例病变累及双肺,3例累及右肺,2例累及左肺;共有7例累及右肺中叶。病灶形态表现为单发肿块(结节)4例,肺炎样实变3例,多发结节3例,混合型1例。6例实变或较大肿块病灶中可见充气支气管征,其中的3例可见跨叶分布征。合并LIP的3例患者可见双肺广泛分布的磨玻璃影和多发含气空腔影。大多数病灶表现为放射性浓聚影。结论 18F-FDG PET/CT可以准确地显示PPL病灶的分布、形态和肿瘤活性,其影像表现具有一定的特征性,能够为PPL的诊断提供帮助。
Objective To explore the manifestations of primary pulmonary lymphoma（PPL） on 18F-FDG PET/CT images.Methods The manifestations of 11 patients with PPL confirmed by pathology were analyzed retrospectively,and the maximal standardized uptake value（SUVmax） were measured.Results There were 2 cases of nodular sclerosis Hodgkin disease and 9 cases of non-Hodgkin lymphoma（NHL）.NHL included extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue（MALT,n=7）,diffuse large B-cell lymphoma and intravascular large B-cell lymphoma（each n=1）.Three patients of MALT complicated with lymphocytic interstitial pneumonia（LIP）.Six of the 11 cases involved double lungs,3 involved right lung and 2 involved the left lung.The right middle lobe was involved in 7 cases.The lesion was a single mass（node） in 4 cases,similar to the consolidation caused by pneumonia in 3 cases,disseminated nodes in 3 cases and mixed type lesion in 1 case.Air bronchogram was found in the 6 cases with consolidation or big mass,3 of which had straddling-lobe distribution.Three cases of MALT complicated with LIP showed the pervasive ground glass opacity and disseminated sign of cavity with air.Most of the lesions had accumulation of radioactivity.Conclusion 18F-FDG PET/CT could accurately manifest the distribution,morphology and activity of the lesion of PPL.The image findings have some features and are helpful to the diagnosis of PPL.
出处
《中国医学影像技术》
CSCD
北大核心
2011年第10期2021-2025,共5页
Chinese Journal of Medical Imaging Technology
