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|ICD-9||87.73, 87.74, 87.75|
- Intravenous pyelogram In which a contrast solution is introduced through a vein into the circulatory system. This is a form of anterograde pyelogram.
- 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) Any 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.
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