Clinical outcomes and prognostic factors for esophageal cancer in patients aged 80 years or older who were treated with definitive radiotherapy and chemoradiotherapy.

Objective: Aging of populations has been rapidly increasing worldwide. The aim of this study was to identify prognostic factors of overall survival (OS) and progression-free survival (PFS) in patients aged 80 years or older who had esophageal cancer and received radiotherapy.

Methods: Patients aged 80 years or older who received radiotherapy between 2004 and 2015 were retrospectively reviewed.

Stereotactic body radiotherapy for kidney cancer: a 10-year experience from a single institute.

The purpose of this retrospective study was to investigate survival outcomes and irradiated tumor control (local control [LC]) and locoregional control (LRC) after stereotactic body radiotherapy (SBRT) for T1 or recurrent T1 (rT1) kidney cancer. Twenty-nine nonconsecutive patients with 30 tumors were included. SBRT doses of 70 Gy, 60 Gy or 50 Gy in 10 fractions were prescribed with a linear accelerator using daily image guidance.