Inclusion Criteria:

- Age > 18 years old

- All patients must have radiological diagnosis or biopsy confirmed diagnosis of
either:

1. Cohort 1: renal cell carcinoma with a single lesion within kidney, or with
primary kidney tumour intact and no more than 5 documented metastases, or

2. Cohort 2: single adrenal metastases with extra‐adrenal disease controlled

- ECOG performance of 0‐2 inclusive.

- Either medically inoperable, technically high risk for surgery or decline surgery.

- Informed consent.

Exclusion Criteria:

- Cytotoxic chemotherapy within 3 weeks of commencement of treatment, or concurrently
with treatment. Delivery of targeted agents (such as sunitinib) are allowable only
when at least 7 days separate the delivery of the proposed agent and the delivery of
the stereotactic radiotherapy.

- Previous high‐dose radiotherapy to upper abdomen