Photoacoustic Imaging in Diagnosing Changes in Tumors in Participants With Breast Cancer, Sarcoma, Skin Cancer, or Soft Tissue Malignancy and Healthy Volunteers

This pilot trial studies how well photoacoustic imaging works in diagnosing changes in tumors in participants with breast cancer, sarcoma, skin cancer, or soft tissue malignancy and healthy volunteers. Photoacoustic imaging is a low-risk imaging method that provides information about the oxygenation of tissues using a combination of light and ultrasound techniques. Photoacoustic imaging uses a signal from hemoglobin to provide information on blood flow and oxygen levels, and it may be helpful in determining changes in tumors after chemotherapy or radiation treatment.