RecruitingClinical trialLCI-SAR-BSTS-CTDNA-001: Circulating Tumor DNA Liquid Biopsy in Sarcoma PatientsThe purpose of this research study is to see how well Low Pass Whole Genome Sequencing (LP-WGS) can detect circulating tumor deoxyribonucleic acid (ctDNA) in the blood of participants who have bone or soft tissue sarcoma (type of cancer).