Thanks for contacting HCM. Your son's symptoms are of definite concern.
was negative , he still could have Crohn's.
If the endoscopist was really good in getting a good look at the last
portion of the small bowel called "Terminal Ileum" , then at least that
part is not affected. Your son should have a small bowel x-ray series
or a Capsule Endoscopy
if available near your area. You also mention
enlarged lymph nodes and that may be secondary to Crohn's or he may
have some other problem like Lymphoma
or Hodgekin's because of his
and weight loss
But according to your note, all the blood studies were nagative. I am not
sure if that included IBD-Panel (ANCA or ASCA) .
Hope you can discuss these with the GI specialist that he is going to see
I wish him the very best.