hematogenous pulmonary metastasesmultiple pulmonary metastasescannonball pulmonary metastasesbilateral pulmonary metastaseslung metastasis treatmentmetastatic lung diseaseleiomyosarcoma metastasis to lungmetastatic pulmonary adenocarcinomaosteosarcoma lung metastasismultiple lung metastasislymphoma metastasis to lunglung metastasis melanoma