text: Yo, check it out, listen up, I got something to say,
  About them chronic hemodialyzed patients in a major way.
  Their bony scan at 99m Tc pyrophosphate,
  Classified 'em in groups, man, it ain't too late.
  
  Olgaard's criterions, that's the name of the game,
  Four groups with increasing fixation, ain't it insane?
  Comparing clinical and radiological symptoms they display,
  Renal osteodystrophy, let me break it down, okay?
  
  Alkalin phosphatases and PTHi rate in the mix,
  Analyzing the data, yo, it's quite a fix.
  Twenty-six scans show stage II fixation, that's tight,
  Stage III got eleven patients, their fix is outta sight.
  
  Third stage patients got more symptoms on display,
  Radiographical issues, man, they're here to stay.
  Alkalin phosphatases and PTHi rate, they're high,
  Higher than the second stage, no need to deny.
  
  Based on our observations and the literature in sight,
  99m Tc PP scans, they bring the diagnosis right.
  Early and faithful, that's what they provide,
  Highlighting the increase of osteoid immature tissue, worldwide.
  
  That's the deal, yo, renal osteodystrophy's the name,
  99m Tc PP scans, they bring the diagnosis game.
  Representing that increase of osteoid tissue for real,
  It's a characteristic feature, no doubt, a done deal.