Outcomes After Initial Noninterventional Management of Clinical Stage cT1b Renal Masses.

ABSTRACT:

Background and objective

Localized renal masses 4.1-7.0 cm in size (cT1bRMs) are typically treated with partial or radical nephrectomy. Utilization and results of initial nonsurgical approaches for cT1bRMs are unclear. Our primary objective was to evaluate overall (OS) and metastasis-free (MFS) survival after initiating surveillance for cT1bRMs.

Methods

We retrospectively examined initial management and subsequent follow-up of all patients diagnosed with cT1bRMs (from May 2017 to November 2024) in the Michigan Urological Surgery Improvement Collaborative (MUSIC). Patients were stratified by intervention versus surveillance at 90 d following initial consultation. Patients initiating surveillance were further stratified as those with continued surveillance versus delayed inter

SUBMITTER: Hussain B 

PROVIDER: S-EPMC12670937 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature