Lymphedema Prevention Through Immediate Lymphatic Reconstruction (LILY) Trial.

Inclusion Criteria: 1. Participants diagnosed with IBC. 2. Participants who have been scheduled for ILR/pLVB by their treating physician/surgeon at the time of their axillary lymphadenectomy for breast cancer 3. Participants willing and able to comply with the study protocol requirements and all study-related visit requirements. 4. Female subjects at least 18 years old and capable of providing consent to participate. 5. Females of childbearing potential must have a negative urine pregnancy test within 36 hours prior to study drug administration and agree to use a medically accepted method of contraception for a period of one month following the study. Exclusion Criteria: 1. Patients known to be pregnant or breast-feeding. 2. Patients with known or suspected iodine or ICG hypersensitivity. 3. Patients unable to remain stationary for one hour. 4. Active cellulitis. 5. Subjects with a preoperative clinical lymphedema diagnosis. 6. Subjects undergoing bilateral ALND. 7. Subjects requiring immediate chest wall reconstruction with a pedicled or microvascular flap, or those that have received preoperative radiation therapy. 8. Patients with BMI \>45kg/m2.