小肠白细胞瘤模仿神经内分泌瘤在68Ga-DOTATATE PET/CT上
Nikhil Prasanna Ponna1, Tu Vinh Luong2, Shaunak Navalkissoor3
1Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, United Kingdom.
Clinical nuclear medicine
|January 24, 2025
概括
小肠瘤可以在成像上模仿神经内分泌瘤. 这一案例突出显示,菌瘤可以表达体静止素受体,导致-68 DOTATATE PET/CT 扫描结果呈虚假阳性.
科学领域:
- 胃肠病学 胃肠病学
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
背景情况:
- 神经内分泌瘤 (NETs) 是导致腹部疼痛和出血的重要原因.
- -68 DOTATATE PET/CT 是由于体静止素受体表达而诊断NET的关键成像方式.
研究的目的:
- 报告一个小肠瘤的病例,模仿中肠神经内分泌瘤.
- 为了说明leiomyomas表达体静止素受体的潜力,导致错误的阳性PET/CT发现.
主要方法:
- 腹部CT检测出一个大脑小叶损伤.
- 进行68Ga-DOTATATE PET/CT,以评估体静止素受体表达.
- 手术切除和免疫组织化学证实了诊断.
主要成果:
- 在68Ga-DOTATATE PET/CT.上显示出高密度病变的阴茎中表现出强烈的活动.
- 组织病理学证实了病变是小肠瘤.
- 没有检测到其他索马托斯塔丁受体表达.
结论:
- 小肠瘤可以表达体静止素受体.
- 在68Ga-DOTATATE PET/CT扫描中,瘤可能呈现为虚假阳性.
- 这一发现对于疑似NET患者的准确差异诊断至关重要.
相关概念视频
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
61
This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
61
Imaging Studies II: Positron Emission Tomography and Scintigraphy
95
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Fundamental Principles of PET
95


