Strange gastric submucosal mass identified on EGD

Ideas on what this mass could be? The general surgeon that did my EGD would like to take it out, but doesn't know what it is and has never seen something like it. A 6 month follow up EGD showed it to be essentially identical.

[IMG]http://i717.photobucket.com/albums/ww173/blynch1985/submucosalumbilicatedmass.jpg[/IMG]

Any input is greatly appreciated,
Thanks

[funnystomach]

if that image doesn't show up, here is the link
http://i717.photobucket.com/albums/ww173/blynch1985/submucosalumbilicatedmass.jpg

[funnystomach]

edit: I am only 23 and have been on proton pump inhibitors for gerd over the last year. What we think it could be: ulcer healed very weird, birth defect, scar tissue from possible trauma, tumor of some sort.

[CalGal]

This mass should have been biopsied. Wait for the results of the biopsy. It's the only definitive way to know what the mass is.

[funnystomach]

the biopsy by endoscope was negative, since the mass is under the mucosal layer that was not much help. A needle biopsy using a different scope was an option, however the physician opted against this incase it is something bad and that would risk spreading it.