A small percentage of patients with renal cell carcinoma will have bilateral tumors. Preservation of renal function following tumor resection is a major concern.
Features to consider in case description:
(1) synchronous versus metasynchronous
(2) sporadic vs genetic risk
(3) primary vs metastatic
(4) total number of primary tumors
(5) histologic type for all of the tumors
Genetic risk factors:
(1) familial renal cell carcinoma (not specified)
(2) tuberous sclerosis
(3) von Hippel-Lindau disease
Risk factors for a tumor in the contralateral kidney:
(1) young age at diagnosis of first renal cell carcinoma
(2) genetic cause
(3) multiple primary tumors in first kidney
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