胆固醇颗粒瘤形成子宫内固体成分,表现出强烈的FDG吸收,模仿恶性瘤:一个病例报告
Go Nakai1, Hiroki Matsutani1, Takashi Yamada2
1Department of Diagnostic Radiology, Osaka Medical and Pharmaceutical University, 2-7 Daigaku-machi, Takatsuki City, Osaka 569-8686, Japan.
Radiology case reports
|February 2, 2026
概括
一个罕见的卵巢内膜瘤病例显示,固体成分具有高氧葡萄糖 (FDG) 吸收率,模仿恶性瘤. 病理学发现这是胆固醇颗粒瘤,而不是癌症.
科学领域:
- 妇科瘤学 妇科瘤学
- 放射学 放射学是一门学科.
- 病理学 病理学 病理学
背景情况:
- 血管性或增加氧葡萄糖 (FDG) 吸收在正子发射断层扫描 (PET) 中的子宫内膜瘤中的墙体固体成分 (SC) 经常被怀疑是恶性转变.
- 将这些发现与诸如胆固醇颗粒瘤等良性疾病区分开来,对于准确的诊断和治疗至关重要.
研究的目的:
- 报告一个罕见的卵巢内膜瘤病例,其固体成分呈现强烈的FDG吸收.
- 在这种情况下,要强调胆固醇颗粒瘤的病理诊断.
- 讨论可能有助于区分胆固醇颗粒瘤与恶性瘤的成像特征.
主要方法:
- 一个68岁的妇女患有双侧卵巢囊的病例报告.
- 图像成像方法包括经阴道超声波,磁共振成像 (MRI) 和FDG-PET/CT.
- 切除的卵巢囊的组织病理学检查.
主要成果:
- 核磁共振扫描显示了一个内膜异位瘤与内部SC显示特定的信号强度.
- FDG-PET/CT在SC中显示出强烈的FDG吸收 (SUVmax=13.0),最初引起了对恶性瘤的怀疑.
- 组织病理学证实了SC是颗粒状组织,含有黑色素和胆固醇晶体,诊断为胆固醇颗粒瘤的子宫内膜瘤.
结论:
- 在卵巢内膜瘤SC中,强烈的FDG吸收和特定的MRI信号强度可能代表胆固醇颗粒瘤.
- 磁力共振成像上的色素沉积和敏感性人工物可能有助于这些特征性发现.
- 需要进一步的病例积累,以建立明确的成像标准,以区分胆固醇颗粒瘤与子宫内膜瘤的恶性瘤.
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