Isolated dilatation of the cystic duct-Type VI choledochal cyst: a rare case presentation and review of the literature

<span class="paragraphSection"><div class="boxTitle">Abstract</div>An isolated cystic dilatation of the cystic duct is extremely rare and very few cases have been reported in the world literature. The existing Todani's classification does not include this as a separate entity and thereby, it has been vaguely termed as a Type VI choledochal cyst by some authors in the past. We describe a case of a young male with a Type VI choledochal cyst suspected preoperatively on imaging studies and confirmed intraoperatively by laparoscopy. The cyst was localized to the cystic duct with no involvement of the common bile duct. It was excised <span style="font-style:italic;">en masse</span> with the gall bladder by laparoscopic cholecystectomy. Considering the rarity of these lesions, an insight into the cases reported in the world is required and knowledge about the approach to managing such cases is important in surgical practice.</span>

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