Renal tumor size may reveal its aggressiveness
In a study of 2650 patients who underwent radical or partial nephrectomy for solid renal tumors, those with 2 cm, 3 cm, and 4 cm tumors had an estimated 18%, 24%, and 29% likelihood of aggressive histology, respectively.
The 10-year progression-free survival rates for indolent and aggressive malignant tumors were 90% and 71%, respectively. The 10-year cancer-specific survival rates were 96% and 81%.
For any given tumor size, men had a greater likelihood of aggressive histology than women.
For 2 cm, 3 cm, and 4 cm tumors, the likelihood of aggressive histology was 21%, 28%, and 33%, respectively, for men compared with 13%, 17%, and 21%, respectively, for women.
These data have important implications for the initial counseling and management of patients with an incidentally detected, radiographically indeterminate renal mass.
Bhindi B, Thompson RH, Lohse CM, et al. The probability of aggressive versus indolent histology based on renal tumor size: Implications for surveillance and treatment. Eur Urol. 2018 published online ahead of print.