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CT of renal inflammatory disease.
Kawashima A, Sandler CM, Goldman SM, Raval BK, Fishman EK.
Department of Radiology, University of Texas Medical School, Houston, USA.
Radiographics. 1997 Jul-Aug;17(4):851-66; discussion 867-8
Although computed tomography (CT) is not routinely indicated in uncomplicated renal infection, it is of value in establishing the diagnosis in equivocal cases, in evaluating high-risk patients, and in determining the extent of disease. Unenhanced CT is useful in demonstrating gas, calculi, parenchymal calcifications, hemorrhage, and inflammatory masses. However, a contrast material-enhanced study is essential for complete evaluation of patients with renal inflammatory disease to demonstrate alterations in renal excretion of contrast material that occur as a result of the inflammatory process. In severe acute pyelonephritis, enhanced CT scans obtained during the cortical nephrographic phase typically demonstrate solitary or multifocal areas of hypoattenuation with loss of the corticomedullary interface. Delayed CT scans obtained during the excretory phase are frequently more helpful than early CT scans in defining the extent of the disease process, identifying complications such as renal abscess, and confirming the presence of urinary obstruction.
Posted via PubMed for educational and discussion purposes only.
Link to PubMed Reference
Department of Radiology, University of Texas Medical School, Houston, USA.
Radiographics. 1997 Jul-Aug;17(4):851-66; discussion 867-8
Although computed tomography (CT) is not routinely indicated in uncomplicated renal infection, it is of value in establishing the diagnosis in equivocal cases, in evaluating high-risk patients, and in determining the extent of disease. Unenhanced CT is useful in demonstrating gas, calculi, parenchymal calcifications, hemorrhage, and inflammatory masses. However, a contrast material-enhanced study is essential for complete evaluation of patients with renal inflammatory disease to demonstrate alterations in renal excretion of contrast material that occur as a result of the inflammatory process. In severe acute pyelonephritis, enhanced CT scans obtained during the cortical nephrographic phase typically demonstrate solitary or multifocal areas of hypoattenuation with loss of the corticomedullary interface. Delayed CT scans obtained during the excretory phase are frequently more helpful than early CT scans in defining the extent of the disease process, identifying complications such as renal abscess, and confirming the presence of urinary obstruction.
Posted via PubMed for educational and discussion purposes only.
Link to PubMed Reference
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