Citation, DOI, disclosures and article data
Citation:
Bell D, Gaillard F, Rim sign (pulmonary infarction). Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-62332
The rim sign can be seen in cases of pulmonary infarction on PET-CT with very mild peripheral continuous FDG uptake and the complete absence of central uptake. This is a different appearance to that seen in lung abscesses or necrotic tumors, whereby the peripheral FDG-avidity is marked.
History and etymology
It was first described in 2012 by Michael Soussan, a French nuclear physician at the University of Paris 1.
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1. Soussan M, Rust E, Pop G, Morère JF, Brillet PY, Eder V. The rim sign: FDG-PET/CT pattern of pulmonary infarction. (2012) Insights into imaging. 3 (6): 629-33. doi:10.1007/s13244-012-0189-5 - Pubmed
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