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18F-FDG PET/CT定位诊断异位分泌促肾上腺皮质激素肿瘤的价值 被引量:3

The diagnostic value of 18F-FDG PET/CT in the localization of ectopic adrenocorticotrophic hormone-secreting tumors
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摘要 目的 探讨18 F-脱氧葡萄糖(FDG)PET/CT定位诊断异位分泌促肾上腺皮质激素(ACTH)肿瘤的应用价值.方法 疑诊异位分泌ACTH患者共7例,其中男4例,女3例,年龄27~63岁.7例患者均根据临床症状、生化指标或岩下窦采血结果诊断为异位ACTH综合征,同时进行了头颅MR、胸腹部CT、腹部B超及18F-FDG PET/CT检查,以探查原发病灶,并对发现的病灶进行大小及最大标准摄取值(SUVmax)的测量.结果 7例患者中3例经18F-FDG PET/CT找到原发病灶,病灶大小分别为1.1 cm×1.0 cm、1.5 cm×1.1 cm、1.6 cm×1.5 cm,SUVmax值分别为9.4,6.4和12.0.随后对患者进行了肿瘤切除,病理检查结果分别为胸腺瘤、肺部类癌及纵隔类癌.原发灶检出率为3/7.结论 18F-FDG PET/CT在定位诊断异位分泌ACTH肿瘤中具有一定价值. Objective To investigate the diagnostic value of 18F-fluorodeoxyglucose (FDG) PET/CT in the localization of ectopic adrenocorticotrophic hormone ( ACTH)-secreting tumors. Methods Seven patients with ectopic ACTH syndrome (confirmed by clinical symptom, biochemical data or bilateral simultaneous inferior petrosal sinus sampling) were included, 4 males and 3 females with age ranged 27-63 years old.All patients were examined with head MR, chest and abdomen CT, abdomen ultrasonography, and whole body 18F-FDG PET/CT. Location, size, and the maximum standardized uptake value (SUVmax) of the tumor were measured. Results 18 F-FDG PET/CT detected three ectopic ACTH-secreting tumors with the sizes 1. 1 cm×1.0 cm (SUVmax =9.4), 1.5 cm×1.1cm (SUVmax =6.4), and 1.6 cm ×1.5 cm (SUVmax =12.0). The pathological findings of the three tumors were thymoma, lung carcinoid, and mediastinal carcinoid respectively. Conclusion 18 F-FDG PET/CT may help the localization of ecto pic ACTH-secreting tumors .
出处 《中华核医学杂志》 CAS CSCD 北大核心 2010年第5期329-332,共4页 Chinese Journal of Nuclear Medicine
基金 基金项目:上海市重点学科建设项目(S30203)
关键词 神经内分泌瘤 促肾上腺皮质激素 体层摄影术 发射型计算机 体层摄影术 X线计算机 脱氧葡萄糖 Neuroendocrine tumors Adrenocorticotrophic hormone Tomography,emission-computed Tomography, X-ray computed Deoxyglucose
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