摘要
目的:探讨肿瘤相关性皮肌炎的18F-FDG PET-CT影像特点。方法:回顾性分析9例皮肌炎合并恶性肿瘤患者的临床资料和18F-FDG PET-CT显像资料,采用Mann-Whitney U秩和检验对恶性肿瘤病灶与骨骼肌的SUVmax的相关性进行统计学分析。9例中胆囊癌3例,肺癌2例,卵巢癌、食管癌、结肠癌及恶性淋巴瘤各1例。结果:所有恶性肿瘤病灶的18F-FDG摄取较高,SUVmax为7.26±5.48;7例患者18 F-FDG PET-CT显像示全身骨骼肌弥漫性对称性轻度摄取增高,SUVmax为3.45±0.81,与恶性肿瘤间差异有统计学意义(Z=-2.910,P=0.004)。同机CT扫描还发现1例合并间质性肺炎,3例合并肺部感染。结论:肿瘤相关性皮肌炎的18F-FDG PET-CT表现有一定特征性,认识其影像学表现,有助于提高对此病的诊断准确性。
Objective：To summarize the imaging characteristics of 18 F-FDG PET-CT in patients with dermatomyositis associated with malignancy. Methods： Retrospective analysis was made of clinical data and image data by whole body 18F- FDG PET-CT of 9 patients with dermatomyositis associated with malignancy. Results： Among 9 patients, there were 3 pa- tients with gallbladder carcinoma,2 patients with lung cancer, one patient with ovarian cancer, one patient with esophagus cancer,one patient with colon cancer, and one patient with lymphoma, respectively. All malignant lesions were 18F-FDG avid, the SUVmax, was 7.26±5.48. There was mild, diffuse and symmetrical increase of 18 F-FDG uptake in the muscles, the SUVmax was 3.45±0. 81. There was statistical difference of the 18F-FDG uptake between the lesions and muscles （Z=-2. 910,P=0. 004）. In addition, 1 patient with interstitial pneumonia,and 3 patients with lung infections were diagnosed by CT. Conclusion：Clinicians and radiologists should be aware of the 18 F-FDG PET-CT imaging manifestations of dermato- myositis associated with malignancy in order to improve the diagnostic accuracy.
出处
《放射学实践》
2013年第12期1287-1290,共4页
Radiologic Practice
