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.