 The purpose of this study is to obtain chemical information from part of your body without a biopsy. This is done using a technique called magnetic resonance spectroscopy MRS which is similar to magnetic resonance imaging MRI except that signals are detected from the chemicals spectroscopy naturally present in your body using radio waves. To receive this information from your body, small loops of wire surface coils, placed near the tissue of interest, may be used to more effectively detect signals that come from the chemicals in your body. The investigators may use a second radio channel simultaneously, which will allow us to obtain greater chemical information decoupling. The results may also help us to understand how this study can be used to help other patients with your condition. 