Non-interventional Observational Study of Helical Tomotherapy for Oligometastatic Colorectal Cancer

You may be eligible if

• Patients with (residual) oligometastatic CRC: ≤ 5 mets
• Primary tumor treated with curative intention (surgery, radiotherapy, chemoradiotherapy)
• Functional liver volume \> 1000cc if livermets, lung DLCO \> 30% if lungmets.
• No Child B or C liver cirrhosis
• No contra-indications for radiation of all metastatic CRC (= no violation of constraints of organs at risk (OAR))
• No mets from another carcinoma
• Age \> 18 years
• WHO-PS ≤ 2