Pyelogram

Pyelogram
ICD-987.73, 87.74, 87.75
MeSHD014567
OPS-301 code3-13d

Pyelogram (or pyelography or urography) is a form of imaging of the renal pelvis and ureter.[1]

Types include:

  • Intravenous pyelogram – In which a contrast solution is introduced through a vein into the circulatory system.
  • Retrograde pyelogram – Any pyelogram in which contrast medium is introduced from the lower urinary tract and flows toward the kidney (i.e. in a "retrograde" direction, against the normal flow of urine).
  • Anterograde pyelogram (also antegrade pyelogram) – A pyelogram where a contrast medium passes from the kidneys toward the bladder, mimicking the normal flow of urine.
  • Gas pyelogram – A pyelogram that uses a gaseous rather than liquid contrast medium.[2] It may also form without the injection of a gas, when gas producing micro-organisms infect the most upper parts of urinary system.[3][4]
  1. ^ "pyelography" at Dorland's Medical Dictionary
  2. ^ Resnick MI, Novick AC (1999). "Evaluation of Hydronephrosis in Children". Urology secrets. Philadelphia: Hanley & Belfus. ISBN 1-56053-320-X. OCLC 41137551.
  3. ^ Marley J (2007). Wein AJ, Kavoussi LR, Novick AC, Partin AW, Peters CA (eds.). "Campbell-Walsh Urology, 9th Edition (E-dition)". International Journal of Urological Nursing. 1 (2). Wiley: 94–95. doi:10.1111/j.1749-771x.2007.00017.x. ISSN 1749-7701.
  4. ^ Tanagho EA, McAninch JW (2008). Smith's general urology. New York: McGraw-Hill Medical. ISBN 978-0-07-159331-1. OCLC 190760280.