Tumor margin confirmation is important to confirming appropriate disease excision. Current
standard of care is to take select margin samples to pathology for intra-operative readings.
However, this is expensive, time consuming, and only assesses the margin contained within the
specific sample. In prior work the investigators have determined that indocyanine green (ICG)
is highly specific to the tumor bed when injected shortly before surgery. The investigators
hypothesize that ICG will be able to accurately identify residual positive tumor margins
during sarcoma excision procedures.