由于与PRRT相关的骨髓增生综合征,DOTATATE PET/ CT的骨髓吸收量扩散增加
Chenxi Wu1, Ekaterina Menshikova2, Amol M Takalkar1
1Department of Radiology and Imaging Sciences, Division of Nuclear Medicine and Molecular Imaging.
Clinical nuclear medicine
|August 20, 2025
概括
在治疗神经内分泌瘤后,DOTATATE PET/ CT 扫描显示了异常的骨髓吸收. 这一关于病理学的发现导致了与治疗相关的骨髓发育综合征 (t-MDS) 的诊断.
科学领域:
- 核医学
- 癌症学
- 血液学
背景情况:
- 神经内分泌瘤 (NETs) 通常使用像177Lu-DOTATATE这样的受体放射性核酸治疗 (PRRT) 来治疗.
- 骨髓对DOTATATE的吸收可能是由于血液生成前体细胞上的索马托斯坦受体2 (SST-2) 表达而引起的.
- 异常或扩散性增加的骨髓吸收可能表明病理.
研究的目的:
- 在之前为转移性小肠神经内分泌瘤治疗的患者中报告DOTATATE PET/ CT的异常成像发现.
- 突出DOTATATE PET/CT在识别与治疗相关的肌肉发育综合征 (t-MDS) 的潜力.
主要方法:
- 在患有转移小肠神经内分泌瘤的患者中进行了DOTATATE PET/ CT成像.
- 在PET/CT上分析骨髓吸收模式.
- 通过骨髓活检确认诊断.
主要成果:
- 随访DOTATATE PET/CT显示了新的,扩散性增加的骨髓吸收.
- 也观察到与已知的转移相对应的焦点吸收.
- 骨髓活检证实了与治疗相关的骨髓发育综合征 (t- MDS).
结论:
- 在DOTATATE PET/ CT上,骨髓吸收量扩散超过了生理水平,对骨髓病理有所担忧.
- 在PRRT后,DOTATATE PET/ CT可以作为检测与治疗相关的骨髓发育综合征 (t- MDS) 的重要诊断工具.
- 这一案例强调了在长期癌症随访中仔细解释成像发现的重要性.
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