Sonographic evaluation of renal masses: Correlations with angiography |
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Authors: | Michael Behan David Wixson W Reed Pitts Elias Kazam |
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Institution: | 1. Department of Radiology, The New York Hospital-Cornell Medical Center, 525 East 68th Street, 10021, New York, NY, USA 2. Department Urology, New York Hospital-Cornell Medical Center, New York, New York, USA
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Abstract: | The value of sonography in the diagnosis of renal masses in a series of 119 consecutive histologically confirmed cases is presented. Sonography correctly identified 92% of the cystic and 90% of the solid renal masses. Causes of incorrect diagnoses included lesions smaller than 2 cm, masses in the left upper pole, diffusely infiltrating urothelial tumors, echogenic fatty lesions (early in our experience), and acute abscesses and hematomas. Angiography in the same series of cases correctly diagnosed 80% of the cystic and 88% of the solid renal masses. Avascular lesions were the main cause for equivocal or incorrect angiographic diagnoses. We conclude that sonography is more definitive than angiography in the diagnosis of avascular masses, while angiography excels when the lesion is vascular or small. Combining the sonographic and angiographic findings allowed accurate diagnosis in over 99% of the cases. |
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