The Cavitron Ultrasonic Surgical Aspirator (CUSA) may be used to remove mucosa of organs of thegastro-intestinal tract. A histological analysis was performed on gallbladders treated with aCUSA-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 completemucosectomy except in areas where Rokitansky-Aschof sinuses were present. There was no evidence ofparietal damage. The CUSA may be used to remove the mucosa of gallbladders without injury to otherlayers, and may have a potential application in procedures such as mucosal cholecystectomy.
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