一名患有乳头状甲状腺癌 (pT2 pN0(0/21) cM0) 的 60 岁男性在甲状腺切除术和 4.2 GBq 辅助 131I 治疗后接受了重组促甲状腺激素诊断性 131I 全身闪烁扫描。在右肾上腺发现了放射性碘的局灶性吸收，这在最初的治疗后图像中没有看到；因此，怀疑肾上腺转移。然而，包括对比增强 MRI 和内分泌实验室测试在内的诊断检查表明，良性病因显示出一种非常罕见的肾上腺放射性碘摄取假阳性病例。一年后的影像随访显示没有显着变化。版权所有 © 2024 Wolters Kluwer Health, Inc. 保留所有权利。

A 60-year-old man suffering from papillary thyroid cancer (pT2 pN0(0/21) cM0) underwent diagnostic 131I whole-body scintigraphy with recombinant thyroid-stimulating hormone for follow-up after thyroidectomy and adjuvant 131I therapy with 4.2 GBq. A focal uptake of radioiodine was found in the right adrenal gland, which had not been seen on the initial posttherapeutic images; therefore, an adrenal metastasis was suspected. However, the diagnostic workup including contrast-enhanced MRI as well as endocrine laboratory tests indicated a benign etiology showcasing a very rare case of false-positive radioiodine uptake in the adrenal gland. The imaging follow-up after 1 year showed no significant changes.Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.