UISS Calculator for Renal Cell Carcinoma

Life Expectancy in Kidney Cancer- UISS Calculator for Renal Cell Carcinoma

The UCLA Integrated Staging System combines 1997 TNM stage, Fuhrman nuclear grade and ECOG performance status to place a patient in a survival group after nephrectomy.

Reviewed by Dr. Mohit Sharma, MCh Urology Adapted by UROWALA
T category (1997 TNM)

T1 up to 7 cm, in kidney. T2 over 7 cm, in kidney. T3 adrenal or perinephric fat, renal vein or vena cava. T4 beyond Gerota's fascia.

N category

N1 single node up to 2 cm. N2–N3 single node over 2 cm, or multiple nodes.

M category

Distant metastasis at presentation.

Fuhrman nuclear grade

Grade 1 is the most differentiated; grade 4 the least.

ECOG performance status

0 fully active. 1 or higher means any restriction in activity.

Sources (5)
  1. Zisman A, et al. Improved prognostication of renal cell carcinoma using an integrated staging system. J Clin Oncol 2001;19(6):1649–1657. Source of the five UISS groups and their 5-year survival. PubMed 11250993.
  2. Zisman A, Pantuck AJ, Wieder J, et al. Risk group assessment and clinical outcome algorithm to predict the natural history of patients with surgically resected renal cell carcinoma. J Clin Oncol 2002;20(23):4559–4566. Source of the low, intermediate and high risk algorithm. doi:10.1200/JCO.2002.05.111.
  3. Patard JJ, Kim HL, Lam JS, et al. Use of the University of California Los Angeles integrated staging system to predict survival in renal cell carcinoma: an international multicenter study. J Clin Oncol 2004;22(16):3316–3322. Source of the 5-year cancer-specific survival by risk category (92%, 67%, 44%) in localized disease. PubMed 15310775.
  4. Usher-Smith J, et al. Risk models for recurrence and survival after kidney cancer: a systematic review. BJU Int 2022. doi:10.1111/bju.15673. Used to cross-check the group definitions.
  5. Prognostic variables and nomograms for renal cell carcinoma. Int J Urol 2011. doi:10.1111/j.1442-2042.2010.02642.x. Used to cross-check the 5-year survival of groups I to V (94%, 67%, 39%, 23%, 0%).

Limits of this tool

  • UISS was built on the 1997 TNM system and Fuhrman grade. Re-stage and re-grade older or newer reports to these definitions; ISUP/WHO grade is not identical to Fuhrman grade.
  • Survival figures describe groups in the cited cohorts. They are not individual predictions, and later series have reported lower discrimination than the original cohort.
  • The low, intermediate and high risk algorithm is applied here to N0M0 disease only.

For clinical education. Results support, and do not replace, multidisciplinary review and the judgement of the treating urologist.

Jaipur’s dedicated urology centre, built around the expertise of Dr. Mohit Sharma, an AIIMS-trained Urologist providing cutting-edge laser and surgical care.

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