<p>This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p> <p>The Cavitron Ultrasonic Surgical Aspirator (CUSA) may be used to remove mucosa of organs of the
gastro-intestinal tract. A histological analysis was performed on gallbladders treated with a
CUSA-mucosectomy to assess the extent and degree of mucosectomy and to evaluate parietal damage.
The histological studies performed on three specimens of chronic cholecystitis revealed a complete
mucosectomy except in areas where Rokitansky-Aschof sinuses were present. There was no evidence of
parietal damage. The CUSA may be used to remove the mucosa of gallbladders without injury to other
layers, and may have a potential application in procedures such as mucosal cholecystectomy.</p>
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HPB Surg. 1993; 6(3):169-173