“ This is a complication of chronic middle ear infection/mastoiditis. MRI • High signal on T1 and T2 in the air cells of the petrous apex ...
“
This is a complication of chronic middle ear infection/mastoiditis.
MRI
• High signal on T1 and T2 in the air cells of the petrous apex (due to cholesterol content)
• With or without low-signal haemosiderin rim
• Thinning of the adjacent bone
”
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