Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Diagnosis begins with the history and physical examination. An abnormal mass can often be seen at the back of the nasal cavity. Imaging tests, such as a cranial CT or cranial MRI, are often done to show the tumor's size and location.