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Abstract：
Occasionally in imaging scans there are findings unrelated to the pathology for which the scan was indicated, findings that are called incidentalomas. Warthin tumors have a high glucose avidity, being one of the common incidentalomas in PET-CT scans. The aim of the present study is to analyze the frequency of occurrence of Warthin\'s tumor as an incidental finding in a large series of patients undergoing 18F-FDG PET-CT. Retrospective analysis of 18F-FDG PET-CT scans performed in our center during the period 2010-2021. Parotid hypermetabolic lesions were identified, as well as their SUVmax, size, smoking habit, BMI (body mass index), and otorhinolaryngology follow-up. 31,423 PET-CT-18FDG studies corresponding to 12,806 patients were analyzed. The frequency of incidentalomas at the parotid level with a diagnosis compatible with Warthin\'s tumor was 0.87% (n = 111). Eighty percent of the patients with incidentalomas accordant to Warthin\'s tumor had a history of tobacco use. The highest percentage of incidentalomas compatible with a Warthin tumor was found in patients in whom the indication for PET-CT was the study of a lung carcinoma (1.44%). Only 37% of patients with a PET-CT lesion compatible with a Warthin\'s tumor were referred for evaluation by the Otorhinolaryngology service. The incidence of Warthin\'s tumor in 18-FDG PET-CT scans in our center was 0.87%.
摘要：
在影像扫描中偶尔会发现与扫描显示的病理无关的发现，被称为偶发瘤的发现。Warthin肿瘤有很高的葡萄糖亲和力，是PET-CT扫描中常见的偶发瘤之一。本研究的目的是分析Warthin肿瘤的发生频率，这是一系列接受18F-FDGPET-CT的患者的偶然发现。回顾性分析2010-2021年期间在我们中心进行的18F-FDGPET-CT扫描。确定了腮腺高代谢病变，以及他们的SUVmax，尺寸,吸烟习惯,BMI（体重指数），和耳鼻咽喉科随访。分析了31,423例对应于12,806例患者的PET-CT-18FDG研究。诊断与Warthin's肿瘤相符的腮腺水平偶发瘤的发生率为0.87％（n=111）。80％的与Warthin肿瘤一致的偶发瘤患者有烟草使用史。在PET-CT适应症为肺癌的患者中，发现与Warthin肿瘤相容的偶发瘤百分比最高（1.44％）。只有37％的PET-CT病变与Warthin's肿瘤相容的患者被耳鼻咽喉科服务转诊进行评估。本中心18-FDGPET-CT扫描中Warthin瘤的发生率为0.87%。
