背部弹力纤维瘤^(18)F-FDG PET-CT影像表现

Imaging manifestation of elastofibroma dorsi in ^(18)F-FDG PET-CT

目的:探讨背部弹力纤维瘤在^(18)F-FDG PET-CT的影像表现。方法:^(18)F-FDG PETCT检查中发现背部异常代谢软组织肿物,并进行延迟显像。结果:手术病理结果为弹力纤维瘤。^(18)F-FDG PET-CT表现显示,肿瘤边界清楚,临近肋骨未见破坏,为轻度放射性摄取,延迟显像代谢减低;患者无相关临床症状及明显阳性体征。结论:对于弹力纤维瘤^(18)F-FDG PET-CT的肿瘤检出率高于易忽略或漏诊的常规CT检查,且延迟显像代谢进一步减低,符合良性肿瘤^(18)F-FDG代谢改变。

Objective: To explore the imaging manifestation of elastofibroma dorsi in 18F-FDG PET-CT. Methods: The back soft tissue mass of abnormal metabolism was found by 18F-FDG PET-CT scan, and then delayed imaging for the mass was performed. Results: Surgical pathology confirmed it was elastofibroma. The tumor showed clear boundary, there was no damage to adjacent ribs, and this method was mild radioactivity uptake, besides, metabolism was decreased at delayed imaging in 18F-FDG PET-CT; the patient had no correlated clinical symptomatic and apparent positive physical signs. Conclusion: Tumor detection rate of 18F-FDG PET-CT for elastofibroma dorsi is higher than normal CT detection. And the delayed manifestation for metabolism were decrease. Therefore, these situation accordance to benign tumor metabolism changes.