You need to stfu already. You clearly have an agenda to defend GSP gut.
First of all, the reason why John Hopkins and the hospital you mentioned don't list HGH usage as the bulging gut is because REGULAR PEOPLE who come into hospital are not professional athletes who use large amounts of these hormones.
I work in an ER. Patients with protruding bellies have fluid build up. Athletes who take large amounts of hgh, insulin, igf1 and other hormones have over developed abdominal muscles and organs.
Once again, just for the record, I'm not against athletes using peds, but let's have real talks here, instead of covering up the truth.
ER handles a subset of people with distended stomachs, for acute conditions. Another subset have it as a chronic condition, and see their family doctor. Many people have it without seeking treatment of any kind. Some people have it because they have relaxed, unbalanced, or weak abdominal muscles. In particular, regarding this thread, some people have it because genetically their body initially creates visceral rather than subcutaneous fat (as stated, you can find examples of this in pictures of old time strongmen, who'd have required a time machine to obtain HGH). The reason so many reasons are listed for distended stomach is because there are so many causes, some dangerous, some relatively benign.
If you believe the sole causes of distended stomach are either fluid build up or abnormal abdominal and/or organ growth then you're in danger of misdiagnosing patients, and I suggest you take a refresher glance at your old course books, you'll find that's simply not the case.
I'll admit it would be convenient if distended stomach (and everything) were that simple, on many levels. Limiting it to sports, the sporting bodies like the IOC would similarly find it extremely convenient (and much cheaper) than blood tests, and would switch to using distended stomach as proof of HGH use in an instant if it were in fact proof. But they don't consider it proof, or even evidence, because medically it simply isn't.
Note I don't say GSP doesn't used PED's, statistically speaking he probably does - the argument goes, correctly I think, that if more than 50% of UFC fighters use PED's, then there is a greater than 50% chance GSP is using. I am simply stating what is known by every testing, sporting, and medical body out there - we cannot determine GSP's (or any UFC fighter's) use or non-use of PED's from a picture.
However, if you think you can, you can easily retire on the money you will gain copyrighting and selling your methodology, because no one else has come up with a working visual system. You would be the first, and you will become very rich, because you will save organizations tens of millions every year in blood and urine testing.