5cm hard lump removed near elbow thought originally to be inflammatory. sent to pathology, should i be worried. no one saying what it could be....

Wait for results: Without a bit of history and location, it is difficult to speculate on the cause - possibly an enlarged lymph node, an inflammed bursa, or a fatty tumor. Since the specimen was sent to a pathologist, you should receive notification by the surgeon who removed it about the findings. This should not take more than a week, so you are better off waiting than speculating.

Probably not: You'll have to wait for the report, but malignancy in this site is unusual. I'd be thinking of a rheumatoid nodule or something benign like a bursa, pilomatricoma or maybe nodular fasciitis.