Thank you for the query.
Urinary bladder cancer
usually gives metastases to lymph
nodes(in 15-25% of cases). Other metastases are rare and include lungs, liver
and bones. But as every cancer is different, it is always possible that this spots are metastases. That is why he is going to have biopsy
. But the chances that he is having metastases in bones when the lymph nodes are clear, are very very low.
Hope this will help.