<prompt> This procedure is performed in which of the following conditions?MucoceleMirizzis syndromeXanthogranulomatous cholecystitisAcalculous cholecystitis  <response>: The procedure is percutaneous cholecystostomy . The procedure is performed in acalculous cholecystitis Acalculous cholecystitis. Inflammation of GB in absence of stones. TOC: lap. cholecystectomy if patient is unstable - percutaneous cholecystostomy. 