Q I am diagnosed with schwannoma in my right arm down near the elbow (it is not attached to the skin and is in a fixed position). Because I have had it for at least five years and it doesnt seem to have changed size about 5 millimeters, she told me it must be benign. Also because when she pressed on it I could feel nerve response down my arm she said I shouldnt have it removed because I can damage feeling in the arm. My question is simply looking for a second opinion. Do you agree with the assessment of benignity based on the fact that its size has been same after 5 years and has not caused any discomfort? Would it look/feel/be considerably different if it did happen to be malignant?
Lack of fixity, smooth edges, rounded shape, no change in size etc are the usual features of benign tumors. On the other hand, fixity, irregular shape, rough edges, increase in size etc are features of malignant tumors. From your description, the tumour seems most likely benign. However, you should still keep track of it for any change in size. It is a good idea to have your doctor examine it annually.