Detection of Cervical Lymph Node Metastases With a High-Resolution Positron Emission Tomography (PET) Imaging System

The goal of this clinical research study is to learn if using the PEMFlex Solo II, a high-resolution camera for PET scan imaging, on an area of the body that has, or is suspected to have cancer will give researchers the same or better information about the disease compared to the images taken with a routine PET/CT. Researchers will compare the images taken using the PEMFlex Solo II to the images taken during your scheduled routine PET/CT scan, as well as any additional routine CT scan(s), magnetic resonance imaging (MRI) scan(s), and/or ultrasound image(s) you may have had within the last 30 days or may have in the next 30 days.