Bassamabout 7 years ago

A 52-year-old man complains of a 3-week history of malaise and shortness of breath. He has lost weight in the last few months but attributes this to a loss of appetite possibly due to stress at work. On examination, he has a palpable mass in the right lumbar region. He has no urinary symptoms. However, the urine dipstick detected blood. The most likely diagnosis is: A. Renal abscess B. Renal cyst C. Renal carcinoma D. Adrenal tumour E. Pyelonephritis