A 50-year-old gentleman with chronic back pain attends the emergency department with and acute worsening of his lumbar back pain. Additionally, he complains of new onset bilateral sciatica and numbness over his perineum.
On examination you note reduced reflexes and reduced power on knee extension. He has a distended bladder, and a post-void bladder scan shows a residual volume of 500mls.
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State the indications for an emergency spinal MRI.
Of the above, which diagnosis is most likely in this scenario?
What type of image is shown, and what pathology does it represent?
