A 55 year male with complaints of urinary incontinence, severe back pain for 10days imaging shows lumbar disc prolapsed, no history of weight loss and fever. What is the diagnosis?

*severe back pain with urinary incontinence in patient with H/o prolapsed interveebral disc is typical presention of cauda-equina syndrome. CAUDA EQUINA SYNDROME: compression of the lumbo-sacral nerve roots etiology traumatic: blunt/penetrating injury, post-operative atraumatic: central disc protrusion, tumour, epidural abscess, epidural hematoma, spinal stenosis symptoms: acute or gradual back pain, bilateral radiculopathy numb: perianal, bladder sensation weak: rectal incontinence, urinary retention, erectile dysfunction, lower extremity weakness diagnosis: MRI identify compression and cause (CT can miss disc, tumour, abscess, hematoma) treatment: urgent/emergent neurosurgical decompression Ref: millers review of ohopaedics - 7th/e p.677