My wife woke up with a three inche long lump on her right collarbone one week ago. So far, antibiotics have not shrunk it. The doctor is taking bioposy on Monday. Should she take multiple samples and is there a high correlation between malignancies and lumps on the right side of the clavicle (as opposed to the left side)? The doctor said it was soft, but it feels quite hard. I am worried that the lump may be a result of a cancer that may have metastasied. She says her stomach feels a bit bloated today. I am worried about stomach cancer.