A neighbor has this condition & is having a second surgery for it. He is a long time casual fitness swimmer & says his doctor said that swimming was the cause. I’ve been a swimmer for most of my life & never heard of swimmers having this type of issue. I searched on the forum & found nothing. Have any of the medically inclined members heard of anything like this? I’m just curious if there is any basis for the statement or is this a misstatement/misinterpretation of the facts.