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PET上显示强烈的F-FDG肺部微病灶，而CT上无明显异常：医源性FDG肺栓塞的一种表现。

An intense F-FDG pulmonary microfocus on PET without detectable abnormality on CT: A manifestation of an iatrogenic FDG pulmonary embolus.

作者信息

Fathinul Fikri As, Lau Wfe

机构信息

Nuclear Imaging Centre, Faculty of Medicine, University Putra Malaysia.

出版信息

Biomed Imaging Interv J. 2010 Oct-Dec;6(4):e37. doi: 10.2349/biij.6.4.e37. Epub 2010 Oct 1.

DOI:10.2349/biij.6.4.e37
PMID:21611073
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3097806/
Abstract

An incidental finding of an intense focus of (18)F-Fluorodeoxyglucose (FDG) pulmonary uptake on positron emission tomography (PET) without detectable lesions on computed tomography (CT) is highly suggestive of FDG microembolus. Its microscopic nature means it is undetectable on CT. It is an artefact attributable to (18)F-FDG-tracer contamination at the injection site. This paper reports a case of a 61 year-old lady with a past history of breast carcinoma, in whom follow-up PET/CT images demonstrated an incidental intense FDG pulmonary abnormality. A follow-up PET/CT seven months later demonstrated complete resolution of the abnormality.

摘要

正电子发射断层扫描（PET）显示肺部有强烈的（18）F-氟脱氧葡萄糖（FDG）摄取灶，而计算机断层扫描（CT）未发现可检测到的病变，这种偶然发现高度提示FDG微栓子。其微观性质意味着在CT上无法检测到。这是一种由于注射部位（18）F-FDG示踪剂污染导致的假象。本文报告一例61岁有乳腺癌病史的女性，其随访PET/CT图像显示肺部偶然出现强烈的FDG异常。七个月后的随访PET/CT显示该异常完全消失。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5fb8/3097806/27a326b35133/biij-06-e37-g02.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5fb8/3097806/f817b64c8280/biij-06-e37-g01.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5fb8/3097806/27a326b35133/biij-06-e37-g02.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5fb8/3097806/f817b64c8280/biij-06-e37-g01.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5fb8/3097806/27a326b35133/biij-06-e37-g02.jpg

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本文引用的文献

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Incidental focal F-18 FDG accumulation in lung parenchyma without abnormal CT findings.肺实质内偶然出现局灶性F-18 FDG摄取增加，CT检查无异常发现。
Ann Nucl Med. 2009 Aug;23(6):599-603. doi: 10.1007/s12149-009-0262-4. Epub 2009 May 19.
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Focal F-18 fluoro-deoxy-glucose accumulation in the lung parenchyma in the absence of CT abnormality in PET/CT.在PET/CT检查中，肺实质出现局灶性F-18氟脱氧葡萄糖摄取，而CT未见异常。
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Increased (18)F-fluorodeoxyglucose uptake in benign, nonphysiologic lesions found on whole-body positron emission tomography/computed tomography (PET/CT): accumulated data from four years of experience with PET/CT.
Hot-clot artifact in the lung parenchyma on F-fluorodeoxyglucose positron emission tomography/computed tomography mimicking malignancy with a homolateral non-small cell lung cancer.
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Abnormal Fluorodeoxyglucose Uptake in Lung without Structural Abnormality on Computed Tomography.氟脱氧葡萄糖摄取异常但计算机断层扫描未显示肺部结构异常
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