Inclusion Criteria:

1. Patients must be 18 years of age or older.

2. Patients will have a breast mass and/or lymph nodes naïve to therapy about to undergo
biopsy or post-biopsy pre-therapy. Patients with known or suspected recurrent disease
will be eligible for this protocol.

3. Ability to lie still for PET scanning

4. Patients must be able to provide written informed consent

Exclusion Criteria:

1. Age less than 18.

2. Inability to lie still for PET scanning.

3. Cannot provide written informed consent.

4. Current therapy for breast carcinoma.

5. Positive serum or urine pregnancy test within 24 hours of study.