Can a benign tumor metastasize?

No. By definition, a benign tumor does not metastasize (spread to other sites by invading the blood stream or lymphatic system). Extremely rare cases of 'parasitic' or implanted benign tumors (eg leiomyomas of the uterus) are recognized to occur in sites outside their normal origin, but this is thought to be a result of some form of tissue transplantation, and not true tumor ''metastasis'

Related Questions

Malignant tumors shows metastasis but benign tumor not. How do I know if I have a benign tumor?

Benign tumor? Although benign tumors can be observed and do not normally metastasize, the best way to confirm is to have a biopsy. Read more...
By symptoms felt. I assume that you thought that because you have symptoms of some growth somewhere...The only way one can really tell benign from malignant in a strictest sense of the word is to look at it with a microscope and have a pathologist look at it...But simply put a benign tumor is a growth with a very very slow rate of cell growth unlike malignant tumors that grow fast and spread to different places. Read more...

I know malignant tumors shows metastasis but benign tumor not. But there is an example of benign tumo?

Some do spread. By definition a benign tumor does not have the potential to spread. Distant spread has occurred when a lesion that is manipulated or curetted has shown signs of spread. This is really not metastasis. A report of benign metastasizing fibroma of the thumb was reported by keasby many years ago. Some benign sweat gland tumors of axilla have been shown to be present in axillary nodes, . Read more...