Inverted Mercedes-Benz sign
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The inverted Mercedes-Benz sign refers to the shape taken on by a spinal subdural hematoma on axial imaging at the level of the denticulate ligaments, best visualized on MRI. A pair of denticulate ligaments and the dorsal septum constitute the three radiating spikes of the sign, while blood expands and fills the three loculations in-between.
Not to be confused with the Mercedes-Benz sign.
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