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Corona sign on FS-T2WI and CE-FS-T1WI. Invasive CXPA (salivary duct carcinoma) of the right parotid gland in a 77-year-old man. MRI shows a homogeneous low-intensity tumor on axial T1WI (A), mixed high- and low-intensity signals on axial FS-T2WI (B), and irregularly enhanced signal on axial CE-FS-T1WI (C). The tumor size on FS-T2WI and CE-FS-T1WI (solid line) was larger than that on T1WI (dotted line). We defined these MRI findings as corona signs on FS-T2WI and CE-FS-T1WI.
