RecruitingDrug trialLymphovenous Bypass Procedure Before Underarm Lymph Node Surgery in Preventing Lymphedema in Patients With Inflammatory or Locally Advanced Non-inflammatory Breast Cancer or MelanomaThis pilot trial studies whether a procedure called lymphovenous bypass would prevent lymphedema (arm swelling) in patients with inflammatory breast cancer or non-inflammatory breast cancer that has spread to nearby tissues or lymph nodes or melanoma. The lymphovenous bypass procedure creates a path for lymphatic fluid to flow away from the arms. It is usually done after a diagnosis of lymphedema. In this study, giving lymphovenous bypass before underarm lymph node surgery may help prevent lymphedema from forming.