If you are found to be eligible to take part in Part 2 of this study, you will first meet with a certified lymphedema therapist in the Head and Neck Center. During this visit, the therapist will perform a lymphedema exam. This involves checking your neck, face, and mouth for swelling, and looking at your skin to check for any open wounds or infection. The therapist will also interview you about how well you are able to swallow, eat, speak, and perform other normal activities of daily living (performance status). This visit should last about 1 hour.