It is very important to know for sure if you have a bicuspid valve or not, I am amazed they are even doubting or contradicting each other, any good cardiologist should be able to tell you without doubts (cardiology 101). Usually an echocardiogram would tell them. Having a bicuspid valve greatly raises the possibilty of developing an aneurysm, and bicuspid valves are subject to deterioration and needing replacement later in life.

I had both and AAA and bicuspid valve, the AAA was fixed (open heart surgery) the bicuspid valve although slightly deteriorated was left in place as it still could last 10 years+, but I need to monitor it every year with an echo, it will have to be replaced at some point. There are also measures I need to take to protect it and extend its life, like taking antibiotics when going to the dentist as they are very vulnerable to infections.

It is important you see the right specialist that not only gives you the right info about your aneurysm but the health of your heart and valves.