Gustavo S.P. Meirelles MD, PhD, Presenter: Partner, DICOM Grid Stockholder, Fleury Group

Julia Capobianco MD, Abstract Co-Author: Nothing to Disclose

Marco Oliveira, Abstract Co-Author: Nothing to Disclose

The main teaching points of this exhibit are: - To describe and illustrate the main pitfalls and artifacts in the interpretation of oncologic thoracic PET/CT examinations, including false-negative and false-positive findings; - To present strategies for avoiding misinterpretation of common pitfalls and artifacts in oncologic thoracic PET/CT examinations.  

1. Physiologic uptake of FDG 2. Normal variants 3. Artifacts: misregistration, truncation, FDG embolism and extravasation 4. Potential pitfalls 4.1 Brown-fat FDG uptake 4.2 Lipomatous hipertrophy of the interatrial septum 4.3 Pleural uptake related to talc pleurodesis 4.4 Teflon injection of the vocal cord 4.5 Radiation-induced injuries 4.6 Iatrogenic causes of FDG uptake 4.7 Muscular FDG uptake 4.8 G-CSF FDG uptake 5. False-negative results 5.1 Small lesions 5.2 Mucinous tumors 5.3 Adenocarcinomas in situ and minimally invasive (previously referred as bronchoalveolar carcinoma) 6. False-positive results 6.1 Infectious diseases 6.2 Atherosclerosis 6.3 Granulomatous diseases (sarcoid) 7. Summary    

http://abstract.rsna.org/uploads/2014/14014731/14014731_a2gv.pdf

Meirelles, G, Capobianco, J, Oliveira, M, Pitfalls in Interpretation of Oncologic Thoracic PET/CT.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14014731.html