An xray may do the job very quickly.  A FAXITRON machine is excellent for
this purpose, in fact, one could probably do radiography on several
stomachs at one time. You may be able to get this done at another lab with
this instrument and save a lot of work! 
Gayle Callis
MT,HT,HTL(ASCP)
Research Histopathology Supervisor
Veterinary Molecular Biology - Marsh Lab
Montana State University - Bozeman
S. 19th and Lincoln St
Bozeman MT 59717-3610

406 994-6367 (lab with voice mail)
406 994-4303 (FAX)

email: gcallis@montana.edu