CT scan for baby

Summer

My baby is 11weeks old and has 2 lumps at the bottom of this throat. The Dr not sure what it is, thinks it might be a hemangioma but said she's never seen one with 2 lumps in it. She referred us to a ENT Dr but they mentioned having to do a CT scan on him. Was wondering if any other parents have ever had to have a CT scan on there baby at such a young age and what I should expect.