Tumor on a pulmonary artery

After an invasive procedure, my brother has been told that there is a tumor attached to his pulmonary artery.  Based on the seriousness, a biopsy could not even be taken based on the risk of rupturing the artery.  Options proposed:

1 - Do nothing in the short-term and track if this mass grows and then evaluate next steps.
2 - Through a tube in his throat, try to get close enough to the tumor and see if a tissue sample can be taken.
3 - Pardon my simple terms, but contain or block off the tumor on both sides of the artery and possible remove.  Major risk is that if the artery cannot be re-attached then his lung might have to be removed.

Hoping that someone has experienced a similar situation and can recommend other options/surgeon/hospital.

Thank you.