J Korean Radiol Soc.
1995 Dec;33(6):949-955.
Correlation of CT Findings and Pathologic Nuclear Grading in Renal Cell Carcinoma
Abstract
- PURPOSE
To correlate the CT findings of renal cell carcinomas with nuclear grading in histopathology.
MATERIALS AND METHODS
Preoperative CT scans and pathologic nuclear grading of 60 surgically resected
renal cell carcinomas in 55 patients were retrospectively and independently reviewed.
RESULTS
As nuclear grade increased, renal cell carcinomas were more likely to be of higher stage(92% of
nuclear grade III renal cell carcinomas was of stage Ill, all Grade IV tumors were of stage IIIb or higher) and
greater size(84% of grade III tumors and 100% of grade IV tumors>5cm in size) at presentation, and appeared
more heterogeneous(84% of grade III tumors and 88% of grade IV tumors showed moderate or severe heterogeneity)
and less well marginated(84% of grade Ill tumors and 100% of grade IV tumors had irregular or imperceptible margins).
CONCLUSION
Small well-marginated homogeneous renal cell carcinomas were either nuclear grade I or II,
and were distinguishable from the more aggressive nuclear grade III or IV lesions, which generally displayed
irregular margins and greater inhomogeneity.