HI, I'm a college student studying radiology. 
I find interventional radiology to be interesting. It help with imaging. 
Yes, it is so interesting to be able to see what is happening inside the body and to help guide treatment options. 
Walter A. Wohlgemuth became famous because of his work in radiology with kids.
I did not know that.  Tell me more about his work.
He focused on congenital vascular anomalies. 
Oh wow. So important. Who are some other famous radiologists?
Cato Van Lohuizen is who the  the Van Lohuizen Syndrome is named after.