From the *Departments of Radiology and †Nuclear Medicine, Shanghai Sixth People'sHospital, Shanghai Jiao Tong University, Shanghai, China.
Clin Nucl Med. 2013 Nov;38(11):916-8. doi: 10.1097/RLU.0b013e3182a757fd.
A 53-year-old man complained of aggravated left hip pain of more than 2 months. Whole-body (18)F-FDG PET/CT revealed only 1 hypermetabolic lesion in the left ilium. Histopathologic examination of the lesion suggested metastatic disease. Blood tests documented mildly elevated blood calcium and parathyroid hormone. Subsequent neck ultrasonography, contrast-enhanced CT, and dual-phase scintigraphy with (99m)Tc-MIBI showed a right parathyroid tumor, which was confirmed to be a parathyroid carcinoma postoperatively. We report a case of parathyroid carcinoma rarely encountered with a FDG-negative primary but a FDG-positive metastasis on PET/CT images.
一位 53 岁男性患者诉左髋部疼痛加剧超过 2 个月。全身 18F-FDG PET/CT 仅显示左髂骨处有 1 个高代谢病灶。病灶的组织病理学检查提示转移性疾病。血液检查显示血钙和甲状旁腺激素轻度升高。随后进行的颈部超声、增强 CT 和 99mTc-MIBI 双时相闪烁显像显示右侧甲状旁腺肿瘤，术后证实为甲状旁腺癌。我们报告了一例罕见的病例，患者的原发性甲状旁腺癌在 FDG-PET/CT 图像上未见放射性摄取，但转移灶呈 FDG 阳性。
