Renal Mass and Localized Renal Cancer

In patients with a solid or complex cystic renal mass, physicians should obtain high quality, multiphase, cross-sectional abdominal imaging to optimally characterize and clinically stage the renal mass. Characterization of the renal mass should include assessment of tumor complexity, degree of contrast enhancement (where applicable) and presence or absence of fat. (Clinical Principle)

In patients with suspected renal malignancy, physicians should obtain comprehensive metabolic panel, complete blood count and urinalysis. Metastatic evaluation should include chest imaging to evaluate for possible thoracic metastases. (Clinical Principle)

For patients with a solid or complex cystic renal mass, physicians should assign CKD stage based on eGFR and degree of proteinuria. (Expert Opinion)