Objective To explore the effect of PET-CT scanning in AIP. Methods We retrospectively analyzed clinical and PET-CT imaging information of autoimmune pancreatitis (AIP) in the hospital, from August 2010 to February 2012. Whole-body FDG-PET-CT and pancreas delay scanns were preformed in all five patients. Results The 5 patients were all men, aged 42?71 years, with a mean of 54. 2 years. CT showed difuse (n = 4) and segmental (n=l) enlargement of pancreas. PET scans revealed intense FDG in form of strip uptake by lesions of pancreas in all patients. Minimal peripancreat-ic stranding was found in 3 patients. Abnormal findings in extrapancreatic autoimmune diseases was oberved in all five patients : lymphadenectasis (n = 4) sclerosing sialadenitis (n=3), cholangiolitis (n=3), interstitial pneumonia (n = 3), prostatitis (n = 4). Conclusion Whole-body 18 F-FDG PET-CT may be useful for detecting AIP and associated extrapan-creastic autoimmune lesions%目的 探讨PET-CT检查在AIP诊断及全身评估中的作用.方法 回顾性分析2010年08月～2011年12月在我院行18F-FDG PET-CT全身检查的自身免疫性胰腺炎患者5例,所有患者均行全身PET-CT常规及胰腺延迟扫描.结果 5例AIP患者均为男性,年龄42～71岁,平均54.2岁.4例表现为胰腺弥漫性肿大,1例为节段性肿大,病变部位FDG条状摄取增高,SUVmax平均4.38±1.05,延迟扫描后SUVmax进一步升高SUVmax平均5.31±1.26,3例可见胰周少量炎性渗出.5例患者发现有胰腺外的病灶:4例出现淋巴结肿大,其中3例肿大淋巴结伴FDG摄取增高;合并涎腺肿大伴代谢增高者3例;合并胆管炎改变者3例;合并间质性肺炎者3例;4例患者前列腺出现不均匀FDG摄取增高.结论 AIP是一种系统性疾病,18F-FDG PET-CT在显示胰腺病灶的同时可以更好地发现胰外器官受累,在AIP的诊断和全身情况评估中发挥独特的作用.
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