Trial of Lymphoseek in Intraoperative Localization of Lymph Nodes in Breast Cancer and Melanoma

Inclusion Criteria:

* The patient has provided written informed consent with HIPAA authorization before participating in the study, as has his/her responsible caregiver, if applicable.
* The patient is a candidate for surgical intervention, with lymph node mapping being a part of the surgical plan.
* The patient is at least 18 years of age at the time of consent.
* The patient has an ECOG performance status of Grade 0 - 2 \[8\].
* The patient has a clinical negative node status at the time of study entry.
* If of child bearing potential, the patient has a negative pregnancy test within 72 hours prior to administration of Lymphoseek, has been surgically sterilized, or has been postmenopausal for at least 1 year.
* The patient is currently not participating in another investigational drug study.

Melanoma Patients

* The patient has a diagnosis of primary melanoma.

Breast Cancer Patients

* The patient has a diagnosis of primary breast cancer.
* Patients with pure ductal carcinoma in situ (DCIS) or non-invasive carcinoma if lymph node biopsy is part of the surgical plan.

Exclusion Criteria:

* The patient is pregnant or lactating;
* The patient has clinical or radiological evidence of metastatic cancer including palpably abnormal or enlarged lymph nodes (i.e., all patients should be any T,N0,M0);
* The patient has a known hypersensitivity to Lymphazurin or Patent Bleu V.

Melanoma Patients

* The patient has a tumor with a Breslow depth less than 0.75mm.;
* Patients that have had preoperative chemotherapy, immunotherapy or radiation therapy;
* Patients diagnosed with a prior invasive melanoma that would occur on the same body region or potentially draining to the same nodal basin or patients with truncal or extremity primary melanoma who has had a prior breast cancer potentially draining to the same axillary nodal basin;
* Patients who have undergone node basin surgery of any type or radiation to the nodal basin(s) potentially draining the primary melanoma;
* Patients who have undergone a wide excision for their primary melanoma (\>1 cm in dimension) or complex reconstruction (rotation, free flap or skin graft of any type).

Breast Cancer Patients

* The patient has bilateral primary breast cancers or multiple tumors within their breast;
* Patients that have had prior surgical procedures such as breast implants, reduction mammoplasty or axillary surgery;
* Patients scheduled for bilateral mastectomy for any reason;
* Patients that have had preoperative radiation therapy to the affected breast or axilla