Thanks for your response. We started out at University of Penn in Phila. After we were told that they didn't think this was Cancer, we went to a Surgeon at Jefferson in Phila. so I feel like we are dealing with very reputable hospitals. Pre-Surgery his Ca19-9 results were as follows :
April 2024 639
June 2024 1720
Early July 2024 1886 ( All of this and we were still told they did not think it was Cancer )

July 2024 1887 ( This is when we went to Jefferson , Pre-surgery )
July 19,2024 403 ( Post Surgery - Unfortunately, they did not get clean Margins but did not know this until after the Pathology Report came back )

September 2024 632
October 2024 859

He has had no treatment at all due to the Drain.