The impact of infection and inflammation in oncologic 18F-FDG PET/CT imaging. 2019

W Tania Rahman, and Daniel J Wale, and Benjamin L Viglianti, and Danyelle M Townsend, and Matthew S Manganaro, and Milton D Gross, and Ka Kit Wong, and Domenico Rubello
Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA.

Sites of infection and inflammation can be misleading in oncology PET/CT imaging because these areas commonly show 18F-FDG activity. Caution in the interpretation must be taken to avoid the misdiagnosis of malignancy. Utilization of both CT findings as well as patient history can help differentiate benign infectious and inflammatory processes from malignancy, although occasionally additional work-up may be required. This article discusses the mechanism of 18F-FDG uptake in infection and inflammation with illustrative examples.

UI MeSH Term Description Entries
D007239 Infections Invasion of the host organism by microorganisms or their toxins or by parasites that can cause pathological conditions or diseases. Infection,Infection and Infestation,Infections and Infestations,Infestation and Infection,Infestations and Infections
D007249 Inflammation A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function. Innate Inflammatory Response,Inflammations,Inflammatory Response, Innate,Innate Inflammatory Responses
D009369 Neoplasms New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms. Benign Neoplasm,Cancer,Malignant Neoplasm,Tumor,Tumors,Benign Neoplasms,Malignancy,Malignant Neoplasms,Neoplasia,Neoplasm,Neoplasms, Benign,Cancers,Malignancies,Neoplasias,Neoplasm, Benign,Neoplasm, Malignant,Neoplasms, Malignant
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000072078 Positron Emission Tomography Computed Tomography An imaging technique that combines a POSITRON-EMISSION TOMOGRAPHY (PET) scanner and a CT X RAY scanner. This establishes a precise anatomic localization in the same session. CT PET,CT PET Scan,PET CT Scan,PET-CT,PET-CT Scan,Positron Emission Tomography-Computed Tomography,CT PET Scans,CT Scan, PET,CT Scans, PET,PET CT Scans,PET Scan, CT,PET Scans, CT,PET-CT Scans,Scan, CT PET,Scan, PET CT,Scan, PET-CT,Scans, CT PET,Scans, PET CT,Scans, PET-CT
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D019788 Fluorodeoxyglucose F18 The compound is given by intravenous injection to do POSITRON-EMISSION TOMOGRAPHY for the assessment of cerebral and myocardial glucose metabolism in various physiological or pathological states including stroke and myocardial ischemia. It is also employed for the detection of malignant tumors including those of the brain, liver, and thyroid gland. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1162) 18F Fluorodeoxyglucose,18FDG,2-Fluoro-2-deoxy-D-glucose,2-Fluoro-2-deoxyglucose,Fludeoxyglucose F 18,18F-FDG,Fluorine-18-fluorodeoxyglucose,Fluorodeoxyglucose F 18,2 Fluoro 2 deoxy D glucose,2 Fluoro 2 deoxyglucose,F 18, Fludeoxyglucose,F 18, Fluorodeoxyglucose,F18, Fluorodeoxyglucose,Fluorine 18 fluorodeoxyglucose,Fluorodeoxyglucose, 18F

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