Naik Chinna, Basu Sandip
Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital Annexe, Mumbai, Maharashtra, India.
Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital Annexe, Mumbai, Maharashtra, India
J Nucl Med Technol. 2017 Jun;45(2):116-118. doi: 10.2967/jnmt.117.190777. Epub 2017 Apr 13.
This report presents a case of focal uptake in the right parotid gland found on a follow-up whole-body radioiodine scan 1 y after successful ablation of differentiated papillary thyroid carcinoma. After the parotid tumor had been excised, it was proven histopathologically to be a low-grade mucoepidermoid tumor. This case illustrates a I focus that was false-positive for thyroid carcinoma. The short period between radioiodine treatment and development of this parotid tumor creates doubt about a causal relationship. Induction of salivary gland tumors by radiation has been reported primarily in the setting of external radiotherapy. In the large volume of thyroid carcinoma patients treated with radioiodine across the world, such an occurrence has been rare.
本报告介绍了一例在分化型乳头状甲状腺癌成功消融1年后的随访全身放射性碘扫描中发现右侧腮腺局灶性摄取的病例。腮腺肿瘤切除后，经组织病理学证实为低级别黏液表皮样肿瘤。该病例说明了一个对甲状腺癌呈假阳性的摄取灶。放射性碘治疗与该腮腺肿瘤发生之间的短时间间隔让人怀疑是否存在因果关系。辐射诱发涎腺肿瘤主要报道于外照射放疗的情况下。在全球接受放射性碘治疗的大量甲状腺癌患者中，这种情况很少见。
