Adrenal hemorrhage MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

MRI

• Acute stage (less than 7 days after onset): the hematoma typically appears isointense or slightly hypointense on T1-weighted images and markedly hypointense on T2-weighted images.
• Subacute stage (7 days to 7 weeks after onset): the hematoma appears hyperintense on T1- and T2-weighted images.
• Chronic stage (which typically begins 7 weeks after onset): a hypointense rim is present on T1- and T2-weighted images, which is attributed to hemosiderin deposition and the presence of a fibrous capsule.