The treatment options for patients with pulmonary malignancies who have severe comorbidities or poor pulmonary function are limited. These patients are many times not considered for surgical resection because of the excessive risk of undergoing an invasive operation and are often treated with external beam radiation and/or chemotherapy. In the case of pulmonary metastases occurring after previous pulmonary resection, further resection is sometimes not feasible due to limited residual pulmonary parenchyma or dense adhesions.