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目的总结结节病的18F-脱氧葡萄糖正电子发射计算机断层显像(~(18)F-deoxyglucose positron emission tomography with CT,18F-FDG PET/CT)表现。方法回顾性分析经组织病理和临床随访证实的40例结节病患者的~(18)F-FDG PET/CT影像资料。结果 40例~(18)F-FDG PET/CT影像均有纵隔淋巴结肿大,34例双肺门淋巴结肿大,6例右侧肺门淋巴结肿大;肿大淋巴结位于JACC-UICC标准分区4R区40例,10R区40例,7区34例,10L区30例,5区24例;胸内肿大淋巴结呈圆形或椭圆形,形态规则,边界清晰,密度均匀,CT值24.0~57.6(34.1±8.5)Hu,淋巴结最大标准摄取值(maximum standardized uptake value,SUVmax)5.4~28.2(20.8±6.2);淋巴结内见轻度钙化2例,未见明显融合、坏死及侵犯血管;36例见肺部结节,结节SUVmax 1.8~6.5(4.4±1.9),支气管血管束增粗32例,结节沿支气管血管束及胸膜下分布22例,肺内磨玻璃影6例,胸膜增厚或胸腔积液26例;有腹盆腔淋巴结肿大26例,皮下结节或肌间软组织受累20例,脾脏受累4例,双膝关节受累2例。结论结节病~(18)F-FDG PET/CT表现具有一定特征性,~(18)F-FDG PET/CT在结节病诊断中有较高价值。
Objective To summarize the clinical manifestations of sarcoidosis by 18 F-deoxyglucose positron emission tomography with 18F-FDG PET / CT. Methods The data of ~ (18) F-FDG PET / CT in 40 patients with sarcoidosis confirmed by histopathology and clinical follow-up were retrospectively analyzed. Results All the 40 ~ (18) F-FDG PET / CT images had enlarged mediastinal lymph nodes, 34 cases of double hilar lymph nodes and 6 cases of right hilar lymph nodes. The enlarged lymph nodes were located in JACC-UICC standard zone 4R 40 cases in 10R area, 40 cases in 10R area, 34 cases in 7 areas, 30 cases in 10L area and 24 cases in 5 area. The enlarged lymph nodes in the thoracic cavity were round or oval with regular shape and clear densities. The CT values were 24.0-57.6 (34.1 ± 8.5) Hu, the maximum standardized uptake value (SUVmax) 5.4 ~ 28.2 (20.8 ± 6.2) in lymph nodes, 2 cases with mild calcification in lymph nodes, no obvious fusion, necrosis and vascular invasion; 36 cases See pulmonary nodules, nodules SUVmax 1.8 ~ 6.5 (4.4 ± 1.9), bronchial vascular bundle thickening in 32 cases, nodules along the bronchial vascular bundles and subpleural distribution in 22 cases, 6 cases of intrapulmonary vitreous shadow, pleural thickening Or pleural effusion in 26 cases; abdominal pelvic lymph node enlargement in 26 cases, subcutaneous nodules or interstitial soft tissue involvement in 20 cases, spleen involvement in 4 cases, double knee involvement in 2 cases. Conclusions ~ (18) F-FDG PET / CT findings of sarcoidosis have certain characteristics. ~ (18) F-FDG PET / CT has high value in the diagnosis of sarcoidosis.