Are there any different symptoms for a renal tumor next to other kidney abnormalities?

Almost none. Most kidney tumors have almost no symptoms, whether benign or malignant. If a cyst or tumor has sudden bleeding (hemorrhage) or gets infected, or blocks flow to the bladder, there may be pain or even fever associated, but this is rare. A urinalysis done in a lab may reveal clues about a tumor or cyst, but a ct scan or ultrasound is best for diagnosis.