Multi-center MRD Registry for Inflammatory Breast Cancer

This study is building a registry (database) to track a blood-based test called Signatera that looks for cancer DNA in the bloodstream — to monitor disease activity in people with inflammatory breast cancer (a rare, aggressive form of breast cancer). **You may be eligible if...** - You are 18 or older (male or female) - You have been clinically diagnosed with stage III or IV inflammatory breast cancer - You have had or are planning to have at least one blood draw for Signatera testing - You were diagnosed within the last 8 months and have not yet had breast surgery for this cancer - You are an English speaker **You may NOT be eligible if...** - You have had breast surgery for this cancer - You were diagnosed more than 8 months ago Talk to your doctor to see if this trial is right for you.