Elderly man with hematuria

A 60-year old man presented with hematuria. Physical examination revealed an obese individual with moon facies. The patient was suffering from extreme left flank pain. Blood work-up revealed marked erythrocytosis and hyperglycemia. A CT scan was performed and revealed a solid 3cm x 3cm mass in the left kidney. An angiogram demonstrated that the mass is highly vascular. A fine-needle aspiration of the tumor established the diagnosis and the patient received a radical nephrectomy.

The correct answer is B. Renal cell carcinoma. There were a total of 14 responses. A breakdown of responses are inside the parentheses below.

The most likely diagnosis is:

A. Wilms tumor (0)
B. Renal cell carcinoma (13)
C. Angiosarcoma (0)
D. Adrenal cortical adenoma (1)
E. Lymphoma (0)

(see results graphically)