Publication date: Available online 19 October 2018
Source: Current Problems in Diagnostic Radiology
Author(s): Staci M. Gagne, Alex Newbury, Kristina M. Nowitzki, Byron Y. Chen, Hao S. Lo
Abstract
Disorders of the kidney and urinary collecting system are common encountered in the acute care setting. Computed tomography (CT) has progressively replaced intravenous pyelography for the evaluation of most urinary tract pathology including acute flank pain, suspected malignancy, congenital abnormalities, anatomic variants, and inflammatory/vascular conditions through evaluation of the "nephrogram" produced by intravenous contrast material filtering through the kidneys.
In this review, we describe the most common types of abnormal nephrograms seen on renal CT, and highlight the salient features and conditions associated with them, in addition to a pictorial review with specific and interesting related cases. The types of abnormal nephrograms reviewed are absent, unilateral delayed, striated, spotted, and persistent.
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