在99mTc-HYNIC-PSMA SPECT/CT上模仿精液囊入侵的尿反流:通过同时进行骨透析进行澄清
Faeze Rabani1, Amin Saber Tanha, Fatemeh Taheri
1Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Clinical nuclear medicine
|December 8, 2025
概括
使用PSMA成像进行前列腺癌分期检测,可以在经尿道切除前列腺 (TURP) 后显示尿道器件. 相对成像是至关重要的,以避免误解这些发现作为瘤扩散,确保准确的分期.
科学领域:
- 核医学就是核医学.
- 尿道瘤学 尿道瘤学
- 放射性药物 放射性药物 放射性药物
背景情况:
- 前列腺癌的诊断和分期对于治疗计划至关重要.
- 前列腺特异性膜抗原 (PSMA) PET/CT是检测前列腺癌复发和转移的宝贵工具.
- 通过尿道切除前列腺 (TURP) 是良性前列腺增生的一个常见程序,但可能会影响后续成像.
研究的目的:
- 在TURP后,报告一个模仿PSMA PET/CT瘤吸收的尿道人工物病例.
- 为了强调相关成像在精确的前列腺癌分期的重要性.
主要方法:
- 一名67岁的男性患者患有下游泌尿道症状,因怀疑良性前列腺增生而接受TURP.
- 在TURP后的分期包括99mTc-HYNIC-PSMA SPECT/CT和骨扫描.
- 图像检测结果被分析,以区分真正的瘤吸收与文物.
主要成果:
- 99mTc-HYNIC-PSMA SPECT/CT显示前列腺和左精液囊中的焦点吸收,表明T3b疾病.
- 随后的骨扫描显示,类似的吸收量低于膀.
- 这种相同的模式证实了泌尿器人造物,而不是PSMA-avid瘤参与.
结论:
- 尿路活动可能导致PSMA PET/CT扫描的假阳性结果,特别是在TURP后.
- 相对成像,如骨光学成像,对于正确解释PSMA吸收和避免误诊前列腺癌至关重要.
- 在最近的手术中仔细评估成像检测结果对于准确的患者管理至关重要.
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