Hello, my son was diagnosed(presumptively with BWS at around 6 months of age) There was no test available at the time. His blood was banked and ultimately came back positive. He is now 16 years old and has had elevated blood pressure for a couple months. He is very fit, and athletic. Today he had a survey renal ultrasound and his kidneys are enlarged which I am assuming is from the BWS. I am wondering if there is any connection between BWS and hypertension? I have been reading(maybe too much) about fibromuscular dysplasia. I would appreciate any thoughts. He has also been diagnosed with tourettes but not sure there is any relationship there.