This phase I study proposes the use of systemic thiosulfate rescue to allow supradose intra-arterial cisplatin delivery to lung tumors. Eligible patients would be those with at least one lung lesion large enough of characterize angiographically. All patients will first undergo a CT arteriogram of the target tumor. Patients will then receive 2 treatments on 2 consecutive weeks. The primary endpoint will be toxicity, with secondary endpoint of response as measured on week 4. This pilot study will also determine how technically feasible it is to locate the blood supply to these tumors and deliver cisplatin.