Yeretsian Rita A, Blodgett Todd M, Branstetter Barton F, Roberts Michelle M, Meltzer Carolyn C
Department of Radiology, University of Pittsburgh Medical Center, PET Facility, 200 Lothrop Street, Pittsburgh, PA, USA.
AJNR Am J Neuroradiol. 2003 Jun-Jul;24(6):1164-6.
Patients who have undergone thyroidectomy may have recurrent laryngeal nerve injury; until recently, Teflon injection was commonly used for vocal cord medialization. We present a case of a patient who underwent thyroidectomy who had significantly increased and unilateral (18)F-fluorodeoxyglucose uptake in the neck, which was found to be localized to the left vocal cord by use of combined positron emission tomography (PET) and CT, presumably because of a Teflon-induced granuloma. Knowledge of this potential source of false-positive PET interpretation because of its inability to precisely localize neoplastic lesions, and the use of combined PET and CT imaging, may allow precise diagnosis and prevention of unnecessary interventions.
接受过甲状腺切除术的患者可能会出现喉返神经损伤；直到最近，聚四氟乙烯注射术仍常用于声带内移。我们报告一例接受甲状腺切除术的患者，其颈部（18）F-氟脱氧葡萄糖摄取显著增加且为单侧，通过正电子发射断层扫描（PET）和CT联合检查发现病变局限于左侧声带，推测是聚四氟乙烯诱导的肉芽肿所致。了解由于PET无法精确定位肿瘤病变而可能导致假阳性解读的这一潜在原因，以及使用PET和CT联合成像，可能有助于进行精确诊断并避免不必要的干预。
