Utility of Pelvic CT for Surveillance of T2-T4 Renal Cell Carcinoma After Nephrectomy With Curative Intent

AJR. American Journal of Roentgenology
Andrew KaiserIsaac R Francis

Abstract

The purpose of this study was to determine whether routine pelvic imaging is necessary during postoperative surveillance of pathologic T2-T4 renal cell carcinoma after nephrectomy for curative intent. A retrospective single-institution cohort study with 603 subjects undergoing partial or radical nephrectomy of T2-T4 renal cell carcinoma with curative intent was conducted from January 1, 2000, through December 31, 2015. Clinical and imaging (CT or MRI) follow-up findings were evaluated in a prospectively maintained registry to determine the timing and location of recurrent and metastatic disease. The primary outcome was the proportion of subjects with positive or equivocal findings in the pelvis and negative findings in the chest and abdomen. Binomial CIs were calculated and compared with a prespecified minimum detection threshold of 5%. The T category distribution was as follows: T2 (28.9% [174/603]), T3 (70.3% [424/603]), and T4 (0.8% [5/603]). Most (81.8% [493/603]) of the patients underwent radical nephrectomy, and 27.0% (163/603) had recurrence or metastasis (mean time to first recurrence, 600 ± 695 days). Pelvic imaging findings were negative in 97.0% (585/603) of cases. Four subjects (0.7% [95% CI, 0.2-1.7%]) had isolated...Continue Reading

References

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