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１８ Ｆ Ｆ Ｄ Ｇ 正电子全身断层显像对多种恶性病变的诊断确实有较高的准确性和价格效益比。但是一些良性病变也摄取１８ Ｆ Ｆ Ｄ Ｇ，引起假阳性。综合文献报告，下列良性病变在肿瘤病人做１８ Ｆ Ｆ Ｄ Ｇ 全身显像时可以出现浓聚，在解释图像时应注意，以降低假阳性率。头颈部：常见的有人工植入体、良性嫌色细胞瘤、非功能性巨大腺瘤、伴有 Ｃｕｓｈｉｎｇ′ｓ 综合征或肢端肥大症的微小腺瘤、慢性甲状腺炎、慢性窦炎、牙龈炎、 Ｗ ａｒｔｈｉｎ′ｓ 瘤、多形性腺瘤和良性唾液腺混合瘤；不常见或极少见的有疱疹性脑炎、脑脓肿、中枢神经系统曲霉病、放射治疗后改变、良性脑膜瘤、脑神经瘤、脑组织细胞增生病、滤泡状甲状腺瘤、 Ｇｒａｖｅ′ｓ 病和甲状旁腺瘤。胸部：常见的有哺乳期的乳腺、乳晕摄取、双侧乳腺炎、急、慢性肉芽肿样乳腺炎、乳腺术后血肿、活动性肺结核、肺肉芽肿、肺炎、肺脓肿、肺结节病、伴有支气管扩张和肺不张的急性炎症和人工植入体；不常见或极少见的有乳腺纤维性囊性病变、乳腺发育不良、乳腺纤维腺瘤、肺曲霉病、炎症性尘肺、急性酵母样菌病、活动性间皮细胞瘤、组织胞浆菌病、类风湿性关节炎伴肺病变、放射性肺炎、肺肿瘤坏死、隐性纤维化肺泡炎、浆细胞肉芽肿
18 F F D G positron emission tomography for a variety of malignant lesions do have a higher accuracy and cost-effectiveness ratio. However, some benign lesions also ingest 18 F-FDG, causing false positives. According to the comprehensive literature, the following benign lesions may appear concentrated when performing a 18F-FDG full-body imaging in cancer patients. Care should be taken when interpreting images to reduce the false-positive rate. Head and neck: common artificial implants, benign chromophobe tumors, non-functional giant adenoma, Cushing’s syndrome or Acromegaly with tiny adenomas, chronic thyroiditis, chronic sinusitis, Gingivitis, W arthritis’s tumor, pleomorphic adenoma and mixed salivary gland tumor of benign salivary gland; uncommon or rare herpes encephalitis, brain abscess, central nervous system aspergillosis, change after radiotherapy, benign meningioma, Cerebral neuroma, brain cell proliferative disease, follicular thyroid tumor, Grave’s disease and parathyroid tumor. Chest: Common breast-feeding, areola intake, bilateral mastitis, acute and chronic granulomatous mastitis, postoperative breast hematoma, active tuberculosis, pulmonary granuloma, pneumonia, lung abscess, pulmonary sarcoidosis, Acute inflammation and artificial implants with bronchiectasis and atelectasis; infrequent or rare breast fibro-cystic lesions, mammary gland dysplasia, breast fibroadenoma, pulmonary aspergillosis, inflammatory pneumoconiosis, acute Yeast-like mycosis, Active mesothelioma, Histoplasmosis, Rheumatoid arthritis with lung disease, Radiation pneumonitis, Lung tumor necrosis, Recessive fibrosis alveolitis, Plasma cell granuloma