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美国卫生研究院文献>Case Reports in Oncology
>A Rare Case of 18F-FDG Uptake in an Ectopic Thyroid Carcinoma of the Anterior Middle Neck Lacking Thyroglossal Duct Remnants
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A Rare Case of 18F-FDG Uptake in an Ectopic Thyroid Carcinoma of the Anterior Middle Neck Lacking Thyroglossal Duct Remnants
An 80-year old female presented with a well-defined tumor of the anterior middle neck, and a diagnosis of thyroglossal duct cyst was made. When the tumor size increased, malignancy was suspected. Ultrasonography revealed a smooth, heterogeneously hypoechoic area at her anterior neck. Contrast-enhanced computed tomography showed a well-defined contrast-enhanced tumor inferior to the hyoid bone. Fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) showed a fluorine-18 fluorodeoxyglucose-avid tumor with a maximum standardized uptake value of 12.8. Surgical tumor resection was performed, and the histopathological finding was ectopic papillary carcinoma lacking thyroglossal duct remnants, which is very rare. To our knowledge, few cases of ectopic thyroid carcinoma with 18F-FDG PET/CT findings have been reported. Ectopic thyroid carcinoma lacking thyroglossal duct remnants should be considered a differential diagnosis in cases of 18F-FDG uptake in an anterior middle neck tumor.
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机译:一名80岁女性出现了明确的前中颈肿瘤,并诊断为甲状腺舌管囊肿。当肿瘤增大时,怀疑是恶性的。超声检查显示她的前颈部有一个光滑的异质性低回声区域。对比增强的计算机体层摄影术显示了一个清晰的对比增强的肿瘤,其劣于舌骨。氟18氟脱氧葡萄糖正电子发射断层扫描/计算机断层扫描( 18 sup> F-FDG PET / CT)显示氟18氟脱氧葡萄糖-avid肿瘤,最大标准化吸收值为12.8。进行了手术肿瘤切除,组织病理学发现为异位性乳头状癌,缺乏甲状腺舌管残留,这种情况非常罕见。据我们所知,鲜有 18 sup> F-FDG PET / CT表现的异位甲状腺癌病例报道。在前中颈肿瘤中摄取 18 sup> F-FDG的病例中,应考虑缺乏缺乏甲状腺舌管残留的异位甲状腺癌。
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