My husband has renal cell carcinoma - had right kidney removed in Dec. 2005 (had metastasized into vena cava - also removed portion) , renal cell in the pancreas in 2009 - had tail of pancreas & spleen removed; then renal cell in parotid gland in May 2011. Clear scans in March 2012. He has conjestion and fever 103.3 this evening - but has dropped to 100 with Medicines. Could this be cancer related? Do we need to go to ER ... Or wait for doctor appointment tomorrow?