Reverse Halo Sign
Great little article on a DDx flowchart for the Reverse Halo Sign on CT. Godoy MC, Viswanathan C, Marchiori E, Truong MT, Benveniste MF, Rossi S, Marom EM. The reversed halo sign: update and differential diagnosis. Br J Radiol. 2012 Sep;85(1017):1226-35. doi: 10.1259/bjr/54532316. Epub 2012 May 2. PMID: 22553298; PMCID: PMC3487053.
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