Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the gastrointestinal tract.GISTs arise in the smooth muscle pacemaker interstitial cell of Cajal, or similar cells.astrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the gastrointestinal tract.
That wouldn't be the smartest move, though. Most of the high-denomination bills that are left in circulation are in collectors' safes, and at auction the bills tend to fetch prices that far exceed their face values. For instance, a pristine $10,000 bill can command a price as high as $140,000 on the open market.
This leaves the $100 Federal Reserve note as the nationâs highest-denomination circulating banknote. The $100 bill, featuring a portrait of Founding Father Benjamin Franklin, is one of the worldâs most popular and widely-traded forms of paper currency.