Hi. I am having a difficult time here. One of my relatives discovered a lumb on the middle of his arm (between the armpits and the elbow area, but in front of the arm). In the last 2 months, its size doubled. He went to the doctor to take this away, but the doctor took just one part and said it would be taken to anylise because the "lumb" was bigger than he thought. Now, we are waiting for the response. But I would like to know what could it be. Besides that he has major pain in the stomach while eating sometimes...i don't know, i'm very comfused. Please give me some guidence. Thank you.