My husband is 30 years old. He is generally in good health. Three weeks ago he noticed a pulsating mass above his clavicle. He has some shoulder pain, but no neurological or other symptoms. He went to his primary care physician and had an ultrasound yesterday, which reported that he has a suprascapular aneurysm measuring 0.78 x 0.39 x 0.78 inches. A referral was made to a vascular surgeon who was unable to look at his file yet. How urgently does this need to be addressed? Can anything be done to decrease the risk of rupture? His blood pressure runs 140/90 mmHg, and he does not take blood pressure medication. He is currently on Carbidopa or Levodopa for tremor.