Abstract
Lee EY, Heiken JP, Huettner PC, Na-Chiangmai W enal cell carcinoma is the most common primary malignant neoplasm of the kidney. In the United States in 2002, more than 31,000 patients were diagnosed with renal cell carcinoma, and more than 11,000 patients died of their disease [1]. Early detection of renal cell carcinoma is critical because smaller and lowerstage renal cell carcinomas are more likely to be cured by surgical resection [2]. Helical CT is currently the standard imaging test used to detect and stage renal cell carcinoma. The nephrographic phase of enhancement has been emphasized as the critical phase for tumor detection. We present a case of renal cell carcinoma in which the tumor was seen only during the corticomedullary phase and not during the nephrographic phase of enhancement, which emphasizes the importance of multiphase imaging in the evaluation of a patient with suspected small renal cell carcinoma.
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