text: Yo, listen up, I got a story to tell,
  'Bout subarachnoid hemorrhage, it happens quite swell.
  After severe trauma hits your head real hard,
  Bleeding occurs, veins and arteries on guard.
  
  Used to be diagnosed with cerebral angiography,
  But now we got CT, it's the new technology.
  Head trauma evaluation, fewer aneurysms they find,
  Seems like angiographic procedures left 'em behind.
  
  At our institution, trauma patients get CT scans,
  Bone algorithm included, checkin' out their plans.
  If subarachnoid hemorrhage shows up on the scene,
  CT-angiography steps in, seein' what it means.
  
  Digital subtraction angiography joins the crew,
  For uncertain interpretations, it knows what to do.
  Eighty-one patients came, with trauma in their wake,
  Subarachnoid hemorrhage, a tough path they take.
  
  Thirteen of 'em went through CT-angiography's view,
  Six point two percent found traumatic aneurysms, true.
  Basal cisterns were the location, where they resided,
  Skull base fractures, clivus breakin', they collided.
  
  Four cases got embolized, treatment in their reach,
  But one small extradural aneurysm still needs speech.
  A pericallosal aneurysm got operated on stage,
  When it comes to traumatic aneurysms, they're all the rage.
  
  So remember, if you got skull base fractures in sight,
  And subarachnoid hemorrhage, basal cisterns in the fight,
  Always suspect a traumatic aneurysm, no doubt,
  It's a serious situation we can't do without.